Pregnancy care - third trimester (updated in May 2025):

 


Understand the third trimester pregnancy:

The third trimester consists of the final three months of pregnancy, from weeks 28 to 40 (or until delivery). A pregnancy consists of three trimesters, each roughly 12 weeks long.

In this last trimester, the fetus is continuing to grow in weight and size, and the body systems finish maturing. By the end of the third trimester, your uterus will expand to about the size of a watermelon.

It's crucial to remember that healthcare providers recommend more frequent prenatal checkups to monitor you and the fetus, ensuring you are well-informed and reassured about your pregnancy's progress. This care is designed to support you and your baby every step of the way.

The Third Trimester: Changes and Symptoms: 

The final months of pregnancy can bring many physical and emotional challenges. It's normal to feel a range of emotions, from tiredness and excitement to worry. Many people begin childbirth or lactation classes in the third trimester and ensure they have baby items like a crib, diapers, and clothing. Remember, you're not alone in these feelings; they're all part of the journey to welcoming your baby. Your emotional ups and downs are regular and part of the process, so don't be too hard on yourself. It's OK to feel this way, and it's a sign that you're preparing for a significant change in your life.

The third trimester of pregnancy is a time of remarkable growth and preparation for you and your baby. Your baby will gain weight more rapidly, and its organs will mature in readiness for birth. For instance, the baby's brain will continue developing, opening and closing its eyes.

It will also start to respond to light and sound, and its lungs will continue to mature. These are all signs of your baby's growth and development, bringing you closer to the joy of welcoming your little one.

In the third trimester, some women become increasingly uncomfortable as their due date nears. As the fetus grows in size and crowds the abdominal cavity, some mothers-to-be have difficulty taking deep breaths or getting comfortable at night for sleep. In contrast, others are free from any discomfort as they anxiously await the arrival of their new son or daughter.


The following is a list of changes and symptoms that you may experience during the third trimester:

Braxton Hicks

(false contractions):

During your third trimester, you will also experience contractions, which can signify real or false labour. "False labour" pains are called Braxton Hicks and are your body's way of preparing you for actual labour. They may feel similar to menstrual cramps or a tightening in the abdomen.

There is no medical treatment for Braxton Hicks, but there are some things you can due to ease discomfort, including:

  • Drinking water

  • Changing your position (if you are lying down, try going for a walk, and vice versa)

  • Relaxing by taking a nap, reading a book, or listening to calming music

If these do not lessen the pain and if you notice your contractions becoming more frequent or intense, contact your healthcare provider.

Headaches:

Mild headaches during pregnancy are common. Hormones, stress, and lack of sleep are all common triggers for headaches during pregnancy. However, if you have a severe headache during your third trimester, call your healthcare provider right away, as it could be a sign of preeclampsia, a severe blood pressure disorder caused by abnormal blood flow within the placenta.

Pelvic and back pain:

Pregnancy hormones relax the connective tissue that holds bones in place, especially in the pelvic area. The growing uterus also stretches out muscles in the stomach area. These changes often cause back pain during the third trimester of pregnancy. 

For relief, choose chairs with good back support when you sit. If you need to stand for a while, rest one foot on a box or stool to ease back strain. Abdominal support garments sold in maternity stores may also help. A heating pad or a cold pack may also relieve sore back muscles. Regular exercise, such as walking, keeps your back muscles in shape. Wear low-heeled shoes with good arch support. Don't wear flat shoes or high heels. Physical therapy may help.

Call your healthcare professional if you have severe or ongoing back pain. 

Shortness of breath:

Often, this symptom is due to pressure building under the rib cage as a baby grows in the uterus. You may also notice shortness of breath if you lie on your back or recline. You may need to rest on your side instead. The maximum amount of air the lungs can carry also expands. So you can breathe faster and get winded easily. Practice good posture to give your lungs more room to grow.

Heart palpitations:

These bouts of fluttering or pounding in the chest may feel like skipped heartbeats. Most often, you don't need to worry about heart palpitations. They may happen because blood slowly returns to the heart as the uterus grows. Palpitations usually occur less often later in pregnancy. 

It's imperative to contact your care team if you have palpitations, chest pain, or shortness of breath. With these symptoms, your healthcare professional will likely need to check you in person.

Heartburn or constipation:

Both of these issues can occur during the third trimester. Pregnancy hormones slow digestion, and the growing uterus presses on the intestines.
Eat small meals often to help prevent heartburn. Drink water between meals. Eat fiber-rich foods like fresh or dried fruit, raw vegetables, and whole-grain cereals. Avoid fried foods, citrus fruits, chocolate, and spicy foods. Also, stay away from carbonated drinks and foods with lots of tomatoes. Try not to lie down right after you eat.

If you're constipated, drink plenty of fluids and do light physical activity such as walking. 

Don't take constipation medicines such as stool softeners or laxatives unless your healthcare professional says that's OK.

Spider veins, varicose veins, and hemorrhoids:

Greater blood flow may cause tiny red-purplish veins to appear. These are called spider veins. Their color may look different depending on your skin tone. They may show up on your face, neck, and arms. The redness tends to fade after you give birth. Swollen veins called varicose veins may also show up on your legs. Painful, itchy varicose veins in the rectal area, called hemorrhoids, may appear too.
Exercise and prop up your legs often to ease swelling. You can also use compression socks if needed.

Avoid standing for a long time or sitting with your legs crossed. Try not to strain while passing stool. Eat more fiber-rich foods and drink lots of fluids.

For hemorrhoid relief, soak in a warm tub to ease hemorrhoid symptoms. Or place witch hazel pads in the affected area. If these steps don't work, talk with your healthcare professional about using hemorrhoid creams.

Frequent urination:

As the baby moves deeper into your pelvis, you'll likely feel more pressure on your bladder. You may urinate more often. This extra pressure may also cause you to leak urine, especially when you laugh, cough, sneeze, bend, or lift.
Take bathroom breaks often and do Kegel exercises. (Start by tightening your pelvic floor muscles for three seconds, then relaxing for three seconds. This is one Kegel.) Try to repeat this 10 times. If 10 feels too hard, reduce it to five times until you get stronger. This strengthens the muscles that control urination. Also, use panty liners to absorb leaked urine.

If you are dripping the clear liquid that surrounds your baby in the uterus, contact your healthcare professional. This liquid is called amniotic fluid. Also, contact your healthcare professional if you feel a burning sensation and frequent urination. This can be a symptom of an infection.

Swelling:

I'm sorry to say, but swelling in the third trimester is also normal. Moderate swelling in your ankles, feet, and hands happens because you retain more water. Watch for sudden or excessive swelling anywhere, including your face and around your eyes, because this could be another sign of preeclampsia. Contact your health care provider right away if this happens.

Fatigue:

Your body is working overtime, so it's no surprise if you're tired. Some women sail through their third trimester with lots of energy, but others feel their energy levels dive. You're carrying extra weight, breathing harder and short of breath, and likely not sleeping well. Focus on resting whenever you can.  


  • Your fetus radiates body heat, causing you to feel hot from increased skin temperature.

  • Blood pressure may decrease as the fetus presses on the central vein that returns blood to the heart.

  • Hair may grow on your arms, legs, and face due to increased hormone stimulation of hair follicles. Hair may also feel coarser.

  • Leg cramps may happen more often.

  • Stretch marks may appear on the stomach, breast, thighs, and buttocks.

  • Colostrum (a fluid in the breasts that nourishes the baby until the breast milk becomes available) may begin to leak from your nipples.

  • Dry, itchy skin may persist, particularly on the stomach, as the skin grows and stretches.

  • Your libido (sexual drive) may decrease.

  • Skin pigmentation may become more apparent, especially dark patches of skin on the face.

  • You will have increased white-colored vaginal discharge (leukorrhea), which may contain more mucus.

The Third Trimester - Fetal Development: 

During the third trimester, your fetus grows in size and weight. The lungs are still maturing, and the fetus positions itself head down. By the end of the third trimester, the fetus is about 19 to 21 inches long and weighs, on average, 6 to 9 pounds. Fetal development during the third trimester includes:

  • The fetus can see and hear.

  • The brain continues to develop.

  • The kidneys and lungs continue to mature.

  • By the 36th week, the head may "engage" (drop into the pelvic area), a process called lightening.

  • The bones of the skull remain soft to make it easier to pass through the birth canal.

  • For many babies, the irises of the eyes are slate blue. The permanent eye color will not appear until several days or weeks after birth.

  • The fetus can suck its thumb and can cry.

  • By 38 to 40 weeks, the fetus's lanugo (fine, soft hair on the body and limbs) has disappeared almost completely.

  • By 38 to 40 weeks, the lungs have matured completely.

  • The baby is covered in vernix caseosa (or vernix), a creamy, protective coating on the skin.

  • The head will usually turn downward during the last few weeks of pregnancy.

Emotions during the third trimester:

Beyond the things you notice physically, you may see some emotional symptoms as your due date nears. It's normal to feel excited but worried. You can still anticipate meeting your baby, but have anxiety about giving birth or being a parent. Remember, everyone experiences pregnancy differently. There's no right or wrong way to feel. If you need support navigating your emotions, contact someone for help.

To ease stress, try to find some time to relax. Ideas that may help include:

  • Note your thoughts in a journal.

  • Play music you enjoy and talk soothingly to your unborn baby.

  • Take pregnancy photos to show your child later in life.


Fears about childbirth may become more frequent during the third trimester of pregnancy. 

How much will it hurt? How long will it last? How will I cope? If you haven't done so already, think about taking childbirth classes. You learn what to expect in these classes. You also meet others who share your excitement and concerns. Talk with others who've had positive birth experiences. The reality of parenthood may sink in as well. You might feel anxious, especially if this is your first baby.

Talk with your healthcare professional if you have lots of anxiety or if you have more anxious feelings than upbeat ones. Your healthcare professional may suggest talk therapy or medicine to help you manage your anxiety. And ask your healthcare professional about the choices for pain relief during labor and delivery.

Track your baby's movements:

Many women say their favorite thing to do in the third trimester is to watch their belly when their baby is active. Sometimes you can even see the shape of a little foot pushing against your insides! 

Fetal kick counts or movements aren't just fun to experience; they're also crucial for monitoring your baby's health. By familiarizing yourself with your baby's patterns, you could sense if something is off and tell your health care provider so they can intervene. 

Monitoring your baby's movements might require some concentration and practice. In general, you're trying to determine how long it takes your baby to move ten times, which should take about two hours or less. This includes kicks, rolls, flutters, jabs, etc.

  • Do kick counts at least once a day and at roughly the same time of day.

  • You might find your baby most active after eating, walking, or sleeping in the evening.

  • You can count in any position, but lying on your left side increases blood flow and might help get your baby moving.

  • Keep a list of your daily kick counts and notes, such as the time of day, type of movements, and activity you did to spur the movements.

  • During the last month of your pregnancy, your baby's movements shouldn't decrease, but they will probably feel different because your baby has much less space to kick.

  • Getting familiar with your baby's movements is also a great way to begin bonding.

  • Call your health care provider if you haven't counted ten movements after two hours of trying. Chances are, if you've had a healthy pregnancy so far, your baby is fine. But your doctor might want to see you and monitor your baby just to be safe.

Talk to your baby:

Between 16 and 22 weeks, a fetus can hear their mother's breathing and heartbeat. After 23 weeks, they can listen to sounds from outside the womb, with the mother's voice being the clearest. At around 26 weeks, your baby might start to respond to certain sounds. A loud noise might startle the baby and cause them to move. Music might soothe them.

Talking to your baby in utero is a great way to start bonding during the third trimester of your pregnancy. Even reading a book or magazine aloud can help develop language skills. 

Know about sex in the third trimester:

In most cases, sex is safe during the third trimester of pregnancy. If you're having a healthy and uncomplicated pregnancy, you can probably have sex right up until you go into labor. Having sex won't hurt your baby because they are protected by your uterus and a layer of muscles and safely cushioned by the amniotic fluid. 

Sex drive is different for every pregnant woman since it depends on how you're feeling physically and emotionally, which changes a lot during pregnancy!

Your health care provider might advise against sex in the third trimester if you have placenta previa, vaginal bleeding, preterm labor, or cervical insufficiency. Talk to your health care provider about what's best for you and your baby.

Prenatal Visits During the Third Trimester:

During your second and third trimester prenatal visits, your health care provider may check the following, depending on your current medical condition and the health of your fetus:

  • Any current symptoms or discomforts?

  • Your weight,

  • Your blood pressure,

  • Urine test. This is to find albumin, a protein that may indicate preeclampsia or toxemia, and glucose, which may indicate hyperglycemia.

  • Position, growth, and development of your fetus.

  • Height of the fundus (top of the uterus).

  • Fetal heartbeat.

As you begin the third trimester, your health care provider will change the schedule of your prenatal visits from monthly to every two weeks. You may also be scheduled once every week in the last month. This schedule will depend on your medical condition, the growth and development of the fetus, and your health care provider's preference.

Toward the later weeks of the pregnancy (starting at approximately the 38th week), a pelvic exam may be done to determine the dilation and effacement of the cervix. Your health care provider will also discuss contractions and labor and delivery procedures.

Some of your checkups may be online if you don't have certain high-risk conditions. These are also known as telehealth visits or virtual visits. If you and your healthcare professional choose to have online visits, ask if there are tools you should have at home, such as a blood pressure monitor. To make the most of online visits, write a list of questions ahead of time and take detailed notes.

Get one dose of tetanus, diphtheria, and acellular pertussis (Tdap) vaccine during each pregnancy. It's ideal to get the Tdap vaccine during the third trimester, between weeks 27 and 36 of pregnancy. This can help protect your baby from whooping cough before your baby can be vaccinated. This vaccine is recommended in every pregnancy, even if you are up to date on the vaccination from before your pregnancy.

Talk with your healthcare professional about getting vaccinated against respiratory syncytial virus (RSV) infection. RSV causes infections of the lungs and other organs needed for breathing. RSV infection can be life-threatening for babies. Getting the RSV vaccine during pregnancy can help protect you and your baby.


You'll also need screening tests for various health conditions, including:

Gestational diabetes:

This is a type of diabetes that can happen during pregnancy. Prompt treatment and healthy lifestyle choices can help you manage your blood sugar and deliver a healthy baby.

Iron deficiency anemia:

This condition means you have too few healthy red blood cells to carry enough oxygen to your body's tissues. Iron deficiency anemia can cause you to feel exhausted. Treatment may involve taking iron supplements.

Group B strep:

This type of bacteria can live in the vagina or rectum. Pregnant people don't get symptoms from it. However, it can cause a severe infection if your baby is exposed to bacteria during birth. If tests show that you have group B strep, your healthcare professional gives you antibiotics while you're in labor. This medicine lowers the risk of your baby being exposed to the bacteria.

Your healthcare professional also checks the baby's size and heart rate. Near the end of your pregnancy, your healthcare professional checks the baby's position and asks about the baby's movements. Your healthcare professional may also ask about your labor and pain management preferences as you prepare for delivery.

If you have specific wishes for labor and birth, put your wishes in a birth plan. For example, if you want to labor in a tub of water or if you don't want to take pain medicine, note that in your plan. Review the plan with your healthcare professional. However, keep in mind that health concerns during pregnancy could cause plans to change.

As your due date gets closer, keep asking questions. Knowing what to expect can help you have a better experience when you give birth.

Self-care:

Because your baby is reaching full term, you may feel more uncomfortable during your third trimester than during your second trimester. To manage some discomfort, try the following methods after checking with your healthcare provider first. Remember, choices should always be made based on your preferences and what is available to you.

  • Ask your health provider for advice on diet and lifestyle modifications for heartburn. If these do not help, antacid preparations can be used for troublesome symptoms.

  • If you have difficulty sleeping, try using a pillow to support your whole body or specific areas that need it to help ease tension while you rest.

Healthy foods and regular exercise are essential during your third trimester and pregnancy. 

Continue eating a variety of foods to make sure that you are getting adequate energy, protein, vitamins, and minerals. Keep up with your regular exercise routine, but do not exhaust yourself. As a general rule, you should be able to hold a conversation while working out.

Always consult your healthcare provider about exercise during pregnancy. 


Going into labour:

Most women give birth between 38 and 41 weeks of pregnancy, but there is no way to know the exact moment you will go into labour.

When labour begins, the cervix dilates and the uterus muscles contract regularly and get closer together over time. Contractions will feel similar to menstrual cramps, but more intense. As your uterus contracts, you may feel pain in your back or pelvis, and your abdomen will become hard. When your uterus relaxes, your abdomen will become soft again.

In addition to contractions, some other signs that labour is beginning include:

  • Lightening (the sensation that the fetus has dropped lower),

  • Loss of the mucus plug (you will notice an increase in clear or pink discharge),

  • Water breaking (rupture of membranes),

It is important to note that you might not notice some of these changes before labour begins. If you think you are in labour, contact your healthcare provider.

Decide how you'll cope with labor pain:

You've probably heard this dozens of times during your pregnancy: every woman's pregnancy, labor, and delivery are different. It's true! Some things are typical for most women, but some choices are yours, especially when preparing for labor in the third trimester. Every woman's experience with pain is different, and you have choices about pain medications. It's essential to consider your options while you prepare your body for labor in the third trimester.

  • Pain medications during childbirth include: epidural block, spinal block, opioids, local anesthetic injection, and nitrous oxide. They offer various levels of pain relief and are considered safe for you and your baby. Working with your health care team is recommended to make the best decision for you and your baby.

  • An unmedicated vaginal delivery (or "natural" birth) is most successful when a mother has prepared mentally and physically ahead of time for the experience. There are birth classes explicitly designed for this choice.

  • Consider hiring a professional labor coach or doula to assist you during labor and delivery. Your health care team at your hospital or delivery center will support you during this time, but some women prefer to have the additional support.

Learn the Stages of Labor:

While researching how to prepare for labor in the third semester, make sure to add learning the stages of labor to your list. Weeks before your first contractions begin, your health care provider will give you guidelines for when to call and head to the hospital or birth center. Knowing what to expect during your labor and delivery can help ease your mind and give you another chance to prepare.

The three stages of labor and delivery are:

First stage: Contractions begin. Your cervix begins to efface (thin out) and dilate (open). Contractions will gradually get stronger, longer, and closer together. This is the longest stage of labor, especially if this is your first birth.

Second stage: Pushing. Once your cervix is fully dilated (10 cm), your contractions might become more spaced and less intense. You will likely feel the urge to push as your uterus contracts and moves your baby down the birth canal until they're out.

Third stage: Delivering the placenta. Minutes after your baby is born, your uterus begins to contract again. The placenta separates from your uterus, and with one short push, it will be out. This isn't difficult or painful; your health care provider will guide you.


FAQs (Frequently Asked Questions):

What is the third trimester?

A pregnancy lasts for about 40 weeks. The weeks are grouped into three trimesters. The third trimester includes weeks 28 through 40 of a pregnancy.

The third trimester can be both physically and emotionally challenging for a pregnant woman. The baby is considered full term at the end of week 37, and it's only a matter of time before the baby is born. 

What are the symptoms of the third trimester of pregnancy?

When you reach the last trimester of pregnancy, you may feel like a balloon ready to pop. 

While everyone experiences pregnancy symptoms differently, most people notice aches, swelling, and pains a little more in the third trimester.

Your body is still growing and preparing for labor and delivery — all simultaneously.

You may notice all or some of the following symptoms in the third trimester:

  • A lot of movement by the baby.

  • Tender breasts that may leak watery milk

  • Difficulty sleeping.

  • Braxton Hicks contractions: Occasional random tightening of the uterus, called Braxton-Hicks contractions, is random and usually not painful. Unlike true labor contractions that get stronger, more intense and more painful over time, Braxton Hicks contractions are mild, irregular and don't progress. They can feel more like menstrual cramps. Moving positions or walking can relieve them. Also, be sure to drink plenty of water.

  • Shortness of breath: Taking deep breaths in the third trimester can be difficult. This is mainly because your lungs don't have as much room to expand. This sometimes improves once the fetus drops down into your pelvis in preparation for birth (this is called lightning).

  • Peeing more: When the fetus moves further into your pelvis, it can press on your bladder. This can lead to symptoms like peeing more often or leaking pee when sneezing, coughing, or laughing. Contact your provider if you think you're leaking amniotic fluid.

  • Acid reflux (heartburn): Your growing uterus can press on your stomach and send stomach acids upward, causing symptoms like heartburn and indigestion.

  • Swelling (edema): Fluid retention and weight gain can lead to swollen ankles, fingers, and feet. Elevating your legs can help with the swelling.

  • Varicose veins and hemorrhoids: Increased blood volume can cause your veins to swell. This can cause spider veins on your arms or face, or varicose veins on your thighs. Swollen veins in your rectum can cause you to develop hemorrhoids.

  • Insomnia: Between the bathroom trips and discomfort from your belly, it can be hard to get quality sleep in the third trimester.

  • Protruding belly button.

  • Contact your pregnancy care provider if you're unsure about a symptom. They can give you guidance that's specific to you and your pregnancy.

How can you stay healthy during the third trimester?

It's natural to feel tired and want to slow down in your final months of pregnancy. It's OK if you don't have the same energy you had earlier in your pregnancy. Try to do your best to move your body in a way that's comfortable for you.

Ask for help when you need it. Your friends, family, and partner(s) can help support you as your due date nears.

Many find walking, yoga, or swimming best in the third trimester. 

It's essential to be aware of what to do and avoid as your pregnancy continues to take care of yourself and your developing baby.

What to do:

  • Continue to take prenatal vitamins.

  • Stay active unless you're experiencing swelling or pain.

  • Work out your pelvic floor by doing Kegel exercises.

  • Eat a diet high in fruits, vegetables, low-fat protein, and fiber. It should be nutritious and well-balanced meals.

  • Drink lots of water.

  • Eat enough calories (about 300 more calories than usual per day).

  • Stay active with walking.

  • Keep your teeth and gums healthy. Poor dental hygiene is linked to premature labor.

  • Get plenty of rest and sleep.


What to avoid:

  • Strenuous exercise or strength training could cause an injury to your stomach.

  • Alcohol and beverages.

  • Caffeine (no more than one cup of coffee or tea per day),

  • Smoking,

  • Drugs and medication that aren't prescribed to you.

  • Raw fish or smoked seafood. Shark, swordfish, mackerel, or white snapper fish (they have high levels of mercury),

  • Raw sprouts.

  • Raw or undercooked meat. 

  • Cat litter, which can carry a parasite that causes toxoplasmosis,

  • Soft cheeses and Unpasteurized milk or other dairy products.

  • Deli meats or hot dogs.

  • Hot tubs, saunas, and steam rooms.

  • Sports or activities with a high risk of falling.

  • The following prescription drugs should be avoided: Isotretinoin (Accutane) for acne, Acitretin (Soriatane) for psoriasis, Thalidomide (Thalomid), and ACE inhibitors for high blood pressure.

  • Avoid long car trips and airplane flights (after 34 weeks, airlines may not let you board the plane because of the possibility of an unexpected delivery on board). If you must travel, stretch your legs and walk around at least every hour or two.

How does my baby develop in the third trimester?

The fetus continues to prepare for its entrance into the world by growing in length and weight. Its principal organs continue to develop and function fully by birth. Ideally, the fetus reaches full term before birth (39 weeks). The fetus gains over half of its body weight in the last trimester. It typically moves to a head-down position, which is the best position for delivery.

During this final stage of development, your little one is getting ready to leave the womb. 

How does the bay grow between the beginning of the third trimester?: 

  • Eyes can sense changes in light.

  • The head might have some hair.

  • Can kick, grasp, and stretch.

  • Limbs begin to look chubby.

  • Bones harden.

  • The circulatory system is complete.

  • The musculoskeletal system is complete.

  • Lungs, brain, and nervous system are developed.

  • Fat continues to be added.

Fetal growth can vary significantly for several reasons, but at the beginning of the third trimester, your baby will be around 35 cm (4 in) long and weigh from 1 to 2 kg (2 to 4 lbs).

By the time you give birth, your newborn will be about 46 to 51 cm (18 to 20 in) long and weigh just over 3 kg (7 lbs).

Is my baby fully developed at 27 weeks?

No, a fetus isn't fully developed at 27 weeks. Advances in healthcare make it possible for a baby born at 27 weeks to survive, but they'll require significant medical intervention. Babies born prematurely at 27 weeks are at high risk for complications because most of their major organs aren't fully functioning.

What happens to the fetus during the third trimester?

At around week 32, your baby's bones are fully formed. The baby can now open and close its eyes and sense light. The baby's body will begin to store minerals like iron and calcium.

By week 36, the baby should be in a head-down position. If the baby does not move into this position, your doctor may try to push the baby's position or recommend that you give birth by a cesarean section. This is when the doctor cuts the mother's belly and uterus to deliver the baby.

After week 37, your baby is considered full term, and its organs are ready to function independently. The baby is now around 19 to 21 inches long and probably weighs between 6 and 9 pounds.

What can be expected at the doctor's visit?

You will meet with your doctor more regularly during the third trimester. Around week 36, your doctor may perform a Group B strep test to test for a bacterium that can harm a baby. Your doctor will give you antibiotics if you test positive.

Your doctor will check you progress with a vaginal exam. Your cervix will become thinner and softer as you reach your due date, which will help the birth canal open during labor.

What complications can happen in the third trimester?

There can be complications in the third trimester. Some of the more common ones are:

Preeclampsia is a condition that causes high blood pressure and other symptoms, like protein in your pee.

Gestational diabetes: A condition that causes high blood sugar.

Preterm labor: Labor begins before the 37th week of pregnancy.

Premature (pre-labor) rupture of membranes (PROM): Your water breaks before labor begins.

Intrauterine growth restriction: Your provider estimates the fetus is below the 10th percentile for its gestational age.

Breech: A fetus is breech if its feet or butt is positioned to come out of your vagina before its head.

Your pregnancy care provider schedules more frequent checkups so they can detect potential complications. Attending all your appointments and screenings is essential to lowering your risk of serious complications.

How do I know if labor is starting?

Recognizing signs of labor can be difficult, especially if it's your first pregnancy. Some key signs of labor to watch for are:

Contractions: If you're in labor, your contractions get closer and closer together in frequency. For example, they may come every 10 minutes but then start to come every five minutes. They also increase in length, meaning they may last 30 seconds at first, but then 60 seconds. Finally, they grow in intensity or become more painful over time.

Water breaking: This can feel like a sudden gush or slow trickle of fluid leaking from your vagina.

Bloody show: Bleeding that occurs towards the end of pregnancy when your cervix begins to dilate is called a bloody show. Not everyone experiences a bloody show.

Losing your mucus plug: Your mucus plug acts like a barrier between your vagina and uterus. Once labor begins, it can dislodge and come out of your vagina into your underwear. Sometimes, it comes out in one glob, but other times, you don't notice it at all. This symptom doesn't usually mean that labor is happening that day. Usually, the body prepares for labor, but everyone is different.

If you're unsure about what's happening, it's best to be overly cautious and contact your pregnancy care provider.

When should I call my healthcare provider in the third trimester of pregnancy?

Communicating with your pregnancy care provider is more important than ever in the third trimester. Don't be afraid to ask them what you can expect in the third trimester, including signs of labor and what symptoms could be signs of a problem.

Call your doctor immediately if you experience: 

  • Signs of preterm labor include painful contractions of increasing intensity and frequency,

  • Constant pain between contractions,

  • Your water has broken, and you are not having contractions.

  • Vaginal bleeding,

  • A sudden decrease in fetal movement. (How often the fetus moves can vary, but if you go longer than usual without feeling any movement, contact your provider.),

  • Severe abdominal cramps,

  • Nausea and vomiting,

  • Sudden or extreme swelling,

  • Rapid weight gain,

  • Headaches with spots or flashing lights that do not go away,

  • Dizziness. 

  • Remember, it's always better to be safe and call your provider if you are concerned.

Is Liquid I.V. (Electrolyte) Safe in Pregnancy?

Liquid I.V. is usually safe to take during pregnancy and breastfeeding and can support the increased hydration your body needs. 


Summary of the blog:

Most major health organizations agree that the third trimester of pregnancy starts at week 28. On average, the third trimester lasts until you give birth, at weeks 39 or 40 of pregnancy. In other words, the final 12 weeks of a full-term pregnancy are the third trimester.

The third trimester can be full of excitement. It also may challenge your body and mind.

As your pregnancy progresses, the baby's movements will likely become easier to feel. These movements often happen along with more discomfort and other symptoms, including Braxton Hicks contractions. These are all typical signs of your body preparing for childbirth, so there's no need to worry. These physical symptoms are a regular part of the process and a sign that your body is doing what it needs to do. It's all part of the journey and a sign that your body is working as it should to bring your baby into the world.

The size and position of the unborn baby, also called a fetus, in the uterus might make it hard for you to get comfortable. You may be tired of pregnancy and eager to move on to the next stage. And you might feel let down if you don't give birth by your due date.

Common third-trimester experiences:

The third trimester of pregnancy can be a challenge for the body and the mind. You may feel more uncomfortable now as you continue to gain weight and begin to have false labor contractions (called Braxton-Hicks contractions).

Braxton Hicks contractions:

Braxton-Hicks contractions (false labor) may begin to happen at irregular intervals in preparation for childbirth. These slight feelings of tightness in the stomach area vary in strength and length. They often come and go. But they're more likely to happen in the afternoon or evening, after physical activity or after sex. These contractions also tend to happen more often and strengthen as your due date gets closer.

Typical Braxton Hicks contractions are infrequent and have no pattern, vary in intensity but are usually not painful, can feel like mild menstrual cramps, and might stop when you move or change position. If you experience severe pain or other concerning symptoms, call your healthcare provider right away.

Contact your healthcare professional if you have more than six contractions an hour and they steadily get stronger. That might mean you're going into labor.


Many women describe their third-trimester body as feeling like a passenger in a strange, hard-to-recognize vessel. Your body has undergone many changes in the past 7 months, and the third trimester brings even bigger changes and weird sensations. Even if someone creates a third-trimester checklist by week, everything can change at any point by the time you're at full term.


Your baby is packing on the pounds now. By week 31, your baby has finished most of their significant fetal development and is gaining weight more quickly. By week 36, your baby gains about a half pound and grows a half inch each week, so it's no surprise your organs are squished!

Most pregnant women say they feel clumsy and have difficulty picking things up or putting on their shoes, especially during the last month of pregnancy. You might notice stretch marks on your breasts, belly, and thighs. Leg cramps and swelling are also common during your third trimester.

Some serious pregnancy complications, like preeclampsia and premature labor, can happen during the third trimester, so seeing your health care provider regularly is a must. Taking excellent care of yourself now is your biggest priority for you and your baby.

Some of the common Symptoms in the third trimester include:

  • Constipation, heartburn, and indigestion may continue.

  • Hemorrhoids may persist and increase in severity.

  • Varicose veins in the legs may persist and increase in severity.

  • As you retain fluids, the ankles, hands, and face may become swollen (edema).

  • The increased urinary frequency returns due to increased pressure being placed on the bladder.

Pelvis and Back pains: During the third trimester, your ligaments loosen and stretch to support your growing uterus. Also, your baby's head will start to move lower in your pelvis, putting pressure on your cervix and the nerves around your uterus. All of these changes can cause pain in your pelvis and back. Sometimes the pain shoots suddenly, and the lower back pain might be constant. 

Light exercises such as stretching, swimming, walking, and pelvic tilts offer some relief.

Your emotions:

The third trimester can be stressful. You may have fears about giving birth or becoming a parent. And there's lots to do to get ready for your baby.

Perinatal depression is depression during pregnancy, and it's a very real and serious illness many women experience, often alone.


Some of the same discomforts you had in your second trimester will continue. Plus, many women find breathing difficult and notice they must go to the bathroom even more often. This is because the baby is getting bigger, putting more pressure on your organs. Don't worry, your baby is fine, and these problems will lessen once you give birth.

Prenatal care in the third trimester:

Your pregnancy care provider will schedule prenatal visits more frequently to check on the fetus's health. Unless your pregnancy is high-risk, appointments typically occur every two weeks until the 36th week. For the last four weeks of pregnancy, you will go weekly. You should share any new or changing symptoms with your provider at these visits and ask them questions. Like previous prenatal visits, they'll check the following things:

  • Your blood pressure.

  • Your weight.

  • The position and size of the fetus.

  • Fundal height.

  • Fetal heart rate.

  • Your urine (pee).

  • Your vaccinations.

  • They'll let you know about what vaccines are recommended for pregnancy.


Toward the end of pregnancy, some pregnancy care providers will check your cervix to see if it's started to dilate (open) or efface (thin). Your provider will also complete a Group B strep test around 36 weeks to see if you carry the GBS bacteria.

If your pregnancy is high-risk or you go past your due date, your provider may recommend tests like a nonstress test or biophysical profile to check on the health of the fetus.

Just 20 minutes a day of low—to moderate-intensity activity can help improve pregnancy symptoms and strengthen the body for delivery.

During the third trimester, it is a good idea to start taking childbirth classes in preparation for the big day. This is especially true for first pregnancies.

Your baby's dropping is one of the first signs that your body is getting ready for labor.

Ectopic pregnancy is a severe complication where the fetus develops outside of the womb. Immediate medical treatment is necessary.

Call your healthcare provider right away if the pain is severe or you have other symptoms like a fever, fluttering or pounding heartbeats or vaginal bleeding.


Disclaimer:

We tried to provide authentic and updated information on the subject. This blog is prepared using data compiled and summarized from various websites, as mentioned in the blog. Therefore, I do not take any responsibility (legal or otherwise) for its editing, compiling, and summarizing errors, correctness, completeness, consequences, etc.

This blog's content is only for information purposes. It is not a legal or medical document.

The information and materials contained in this blog are not intended to constitute a comprehensive guide concerning all aspects of the therapy, product, or treatment.

Information about a therapy, service, product, or treatment does not in any way endorse or support such therapy, service, product, or treatment.

It is not intended to serve as medical advice and can not replace medical advice from a doctor or other registered health professional.

Finally, I am not a health professional. Before following anything from this blog, it is strongly requested to consult a specialist, doctor, or healthcare provider. 

https://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in-depth/pregnancy/art-20046767

https://my.clevelandclinic.org/health/articles/third-trimester

https://www.healthline.com/health/pregnancy/third-trimester-developing-baby#staying-healthy

https://www.unicef.org/parenting/pregnancy-milestones/third-trimester

https://www.hopkinsmedicine.org/health/wellness-and-prevention/the-third-trimester

https://www.sevenstarling.com/blog/30-things-to-do-in-the-third-trimester

https://www.themotherbabycenter.org/blog/2022/09/third-trimester-checklist/

My personal opinion:        

  • Giving birth to a baby is a good moment.

  • The third trimester of pregnancy also brings mixed feelings of discomfort and emotions about future happiness. Take it positively.

  • Take care of yourself and your baby.

  • With proper medications and lifestyle changes, we can enjoy the third trimester.

  • Therefore, try hard to overcome the problem and enjoy life.

  • Take the treatment and the birth of the baby under the guidance of your healthcare provider.

  • Do not do self-medication..

  • Best of luck.

===The end===


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