Week 20 of Your Pregnancy (2023)

At 20 weeks pregnant, you are five months along and halfway through your pregnancy. As your baby and uterus continue to grow, you might notice a change in your weight and your belly button.

20 Weeks Pregnant Is How Many Months? 5 months

Which Trimester? Second trimester

How Many Weeks to Go? 20 weeks

Your Baby's Development at 20 Weeks

At 20 weeks, baby is almost 6 3/4 inches (17 centimeters) from the top of the head to the bottom of the buttocks (known as the crown-rump length), and the baby's height is approximately 9 1/2 inches (24.3 centimeters) from the top of the head to the heel (crown-heel length). This week, a baby weighs a little more than 11 1/2 ounces (330 grams).

Reproductive System

By week 20, baby's reproductive system has developed significantly.

  • Female: The development of human egg cells begins long before birth. The number of eggs in the ovaries is at its peak around 20 weeks, with about six to seven million eggs. This number decreases from this point on and continues to go down throughout life.
  • Male: The testes are still in the abdomen, preparing to move to the inguinal area (groin) to begin their descent. However, the testes typically do not descend into the scrotum until the third trimester.

Other Developments

  • The protective layer of vernix continues to build on the skin.
  • Hair follicles are getting longer.
  • Eccrine sweat glands begin to form.
  • The gallbladder is producing bile, which helps to digest nutrients.

Explore a few of your baby's week 20 milestones in this interactive experience.

Stay Calm Mom: Episode 4

Watchall episodes of our Stay Calm Mom video seriesand follow along as our host Tiffany Small talks to a diverse group of parents and top doctors to get real answers to the biggest pregnancy questions.

(Video) Your pregnancy: 20 weeks


Your Baby's Ultrasound: What to Expect

Your Common Symptoms This Week

The typical second-trimester symptoms such as heartburn, nasal congestion, and food cravings may continue this week. You may also be gaining weight, noticing changes in your belly button, or dealing with painful leg cramps.

Week 20 of Your Pregnancy (1)

The Best Humidifiers for Babies to Help Your Child Breathe Easy

Weight Gain

By week 20, you may have put on around 10 pounds. The general pregnancy weight gain guidelines suggest that after a gain of 1 to 5 pounds in the first trimester, you can expect to add approximately 1 pound a week for the rest of your pregnancy.

Weight gain is not merely due to consuming more calories. Rather, it’s a combination of a lot of different things, including the weight of your growing baby, your uterus, the amniotic fluid, the placenta, and even your increased blood volume and breast tissue.

(Video) 20 Weeks Pregnant - What to Expect

Of course, everyone is different. Some people lose weight during the first trimester, and sometimes it's put on faster than expected. You should talk to your doctor if you have any questions or concerns about your weight.

Belly Button Changes

As your uterus grows and expands up into your abdomen, it puts pressure on your abdominal wall. This pressure can change the appearance of your belly button. It doesn't happen to everyone, but an innie belly button can become flattened or even an outie. While you can’t do anything to prevent this pop-out, know that this change is generally temporary and harmless.

Leg Cramps

Up to 45% of pregnant people experience leg cramps. These cramps most commonly occur in the calf muscles. They are painful, sudden, and usually happen at night.

Self-Care Tips

Continue to eat nutritious meals, get enough fluids, participate in safe physical activities, and take your prenatal vitamins. This week, you may also want to find ways to relieve leg cramps, and if you haven't already, begin sleeping on your side.

Avoid Lying on Your Back

After 20 weeks, you should no longer lie down flat on your back. Your uterus and baby are growing big enough to put pressure on your abdominal organs, spine, and the major blood vessels in your body. This pressure can affect your circulation, slow down the flow of blood to your heart, and lower your blood pressure.

What Experts Say

“There’s a large blood vessel called the inferior vena cava that runs along the right side of your spine, which is responsible for returning blood from your lower half to your heart. Theoretically, the weight of your baby and uterus could press on the vena cava, compromising that blood supply.”

—Allison Hill, MD, OB/GYN

To prevent low blood pressure from lying on your back (known as supine hypotension), you can:

  • Sleep on your side with pillows or a wedge to help you from rolling onto your back.
  • Don't exercise lying flat on your back; use modifications instead.
  • If you visit the dentist, go for a prenatal massage, or need a medical test, tell the staff you're pregnant and avoid lying flat.

Dealing With Leg Cramps

Leg cramps are painful, and they can affect your sleep. Doctors aren't sure what causes them, but it may involve inactivity or a deficiency in certain vitamins or minerals. To deal with leg cramps, you can:

(Video) 20 Weeks Pregnant - What to Expect?

  • Get a little daily exercise.
  • Gently stretch the calf muscles.
  • Practice relaxation techniques.
  • Use massage or heat.
  • Talk to your doctor about trying supplements such as calcium, magnesium, or vitamin B.
  • Flex your foot forward (point your toes toward your head) during a cramp.

Your Week 20 Checklist

  • Get a little exercise for your health and to ease pregnancy symptoms.
  • Avoid lying on your back.
  • Talk to your doctor if you have concerns about your weight or belly button.
  • Start planning the nursery.

Advice for Partners

Your plans for preparing the house or a nursery for the new baby might include cleaning and painting. If so, this work is something you can do to lower your partner's exposure to strong cleaning products and paint fumes. While there are no studies that link household paint to negative pregnancy outcomes, it’s widely recommended that pregnant people limit exposure to household paints and their fumes.

Paint fumes, paint remover, and some cleaning products can be dangerous for your partner and your growing baby. To be on the safe side, follow these guidelines:

  • Read paint labels carefully and follow safety instructions.
  • Don't use outdoor paint for indoor rooms.
  • Have your partner avoid fumes by not spending time in freshly painted rooms.
  • Open windows and use a fan to air out rooms with fumes.
  • Try to use low-VOC or zero-VOC paint. (Note that water-based paint tends to give off fewer vapors (VOCs) than oil-based paint.)
  • Check the ingredients in cleaning products.
  • Don't mix cleaning products.
  • Use cleaning solutions in well-ventilated areas.

At Your Doctor’s Office

You may have a scheduled prenatal visit this week. Like appointments before, your physician or midwife will:

  • Record your weight
  • Take your blood pressure
  • Ask you for a urine sample
  • Talk to you about your symptoms
  • Examine your body for swelling
  • Answer your questions

Belly and Baby Growth

Your provider may feel for the top of your uterus around the level of your belly button, and they may also measure the distance from your pubic bone to the top of your uterus. This measurement is called the fundal height, and it can help estimate the size of the uterus and the baby's growth.

Fundal height is measured in centimeters. The measurement often matches the number of weeks pregnant (within a centimeter or two). So, at 20 weeks, your fundal height will likely be around 20 centimeters.


Your 20-week visit may also include a structural ultrasound (also known as the anatomy scan or level 2 ultrasound). The technician will squirt a thin layer of cold jelly on your abdomen and use a hand-held transducer to look at your baby-to-be.

This in-depth ultrasound looks at the development of your baby's body parts and organs, the umbilical cord, the placenta, and the amniotic fluid. If you'd like, and your baby is cooperating, you can also learn the baby’s sex with this scan.

Upcoming Doctor’s Visits

You can expect your next routine prenatal visit to be around 24 weeks.

A screening test for gestational diabetes is typical between 24 weeks and 28 weeks.

(Video) Baby’s Development at 20th Week of Pregnancy Part 1

Special Considerations

As your belly expands and your belly button begins to flatten out or become an "outie," you may have some concerns. It's usually a normal change and not an issue. But, for some expecting parents, an outie might be more than it seems.

Umbilical Hernia

It's normal for the belly button to pop out during pregnancy. However, in about 0.08% or 1 in 1,250 pregnancies, a popped out belly button can be due to a hernia.

An umbilical hernia is a bulge in the belly button from fat tissue or the intestines poking through a hole or weak spot in the abdominal wall. During pregnancy, the pressure in the abdomen from the growing uterus can push the hernia out.

An umbilical hernia can be small and without symptoms or large and painful. Treatment depends on the situation and symptoms. In most cases, treatment can wait until after the baby is born. However, surgery to repair the hernia may be recommended in some cases.

If you notice a soft bulge around your belly button, your outie getting bigger, or belly button pain, be sure to talk to your doctor.

A Word From Verywell

Your pregnancy is halfway over. Over the last 20 weeks, your baby went from the tiny combination of an egg and a sperm the size of a pinpoint to a little human measuring 9 1/2 inches in length.

Over the next 20 or so weeks, your baby is going to continue to grow bigger and stronger. You'll be feeling more and more movement, and it won't be long before your partner and others can feel your baby, too.

Week 21 of Your Pregnancy

(Video) Your Developing Baby, 17-20 Weeks Pregnant | Kaiser Permanente


How do you know everything is OK at 20 weeks pregnant? ›

Ultrasound scan at 18-20 weeks

You might have an ultrasound scan this week to check that your baby is growing healthily and to check the position of your placenta. This detailed ultrasound is one of the routine tests in pregnancy.

Does 20 weeks mean 5 months? ›

Although pregnancy weeks can be grouped into months in various ways, at 20 weeks you're usually considered 5 months pregnant.

What is 20 weeks pregnant equal to? ›

20 weeks pregnant is how many months? If you're 20 weeks pregnant, you're in month 5 of your pregnancy. Only 4 months left to go!

Is a 20-week baby fully developed? ›

Your 20-week baby has grown a lot, so their movements will become more obvious during this week. Your baby is now practically fully formed. In the coming weeks, it will mostly keep growing and gaining weight. Getting stronger is essential for your baby before it comes into the word.

How do you check my pregnancy is going well? ›

Signs of a Healthy Pregnancy – Maintaining the Good Antenatal...
  1. 2.1 Consistent Growth Patterns.
  2. 2.2 Maternal Weight Gain.
  3. 2.3 Foetal Movement.
  4. 2.4 Foetal Heartbeat.
  5. 2.5 Foetal Position.
Nov 22, 2020

When does 6 months pregnant start? ›

Weeks 22-24: By the start of week 24, you are entering your sixth month of pregnancy. In weeks 22-24, your baby has begun to develop hair, fingerprints and footprints. Weeks 25-28: You've made it to the last four weeks of your second trimester are halfway through your sixth month of pregnancy!

When does 3rd trimester start? ›

A pregnancy is divided into trimesters: the first trimester is from week 1 to the end of week 12. the second trimester is from week 13 to the end of week 26. the third trimester is from week 27 to the end of the pregnancy.

How much weight have you gained by 20 weeks pregnant? ›

You may have gained around 8 to 10 pounds by this point. Expect to gain ½ a pound to one pound (. 23 to . 45 kg) per week during the rest of your pregnancy.

Why can't I feel my baby move at 20 weeks? ›

You should start to feel your baby move between around 16 to 24 weeks of pregnancy. If this is your first baby, you might not feel movements until after 20 weeks. If you have not felt your baby move by 24 weeks, tell your midwife. They'll check your baby's heartbeat and movements.

How early can a baby be born? ›

A preterm or premature baby is delivered before 37 weeks of your pregnancy. Extremely preterm infants are born 23 through 28 weeks. Moderately preterm infants are born between 29 and 33 weeks. Late preterm infants are born between 34 and 37 weeks.

How many weeks is 6 months pregnant? ›

What Happens at 6 Months of Pregnancy? 24 Weeks Pregnant.

What week does your baby grow the most? ›

Month 3 (weeks 9 through 12)

It's a period of rapid growth and development. The fetus develops distinct facial features, limbs, organs, bones and muscles. By the end of the 12th week, the fetus has an assigned sex, but it won't be visible on ultrasound for several more weeks.

How much weight should you gain by 20 weeks? ›

As you near the end of your first trimester, and begin the second, weight gain is expected to increase. Some providers like to see women with a "healthy" BMI prior to pregnancy, gain 10 pounds by 20 weeks. During the second and third trimester, guidelines often suggest gaining 1/2 to 1 pound per week.

Why is 20 weeks pregnant a milestone? ›

There are a couple of important growth steps taking place around this time: A 20-week fetus has working taste buds and should have the sucking reflex—you may even catch baby sucking their thumb on the next ultrasound! They're gulping down several ounces of amniotic fluid each day—that's significantly more than before.

What are signs that your pregnancy is not going well? ›

changes to your vision, flashing lights or blurry eyesight, which are signs of pre-eclampsia. sudden, severe swelling in your hands, feet or face. an extreme itchiness of your skin, including hands and feet. a large amount of swelling in your legs (which is also painful)

How do you know if your pregnancy is not progressing? ›

A gestational sac with a yolk sac is observed in a scan but, 11 or more days later, there is no embryo with a heartbeat. A gestational sac without a yolk sac is observed in a scan but, two or more weeks later, there is no embryo with a heartbeat (this means the pregnancy has stopped progressing)

What can go wrong at 5 months pregnant? ›

Chromosomal abnormalities of the fetus.

early labor. problems with the placenta, such as placenta previa (placenta covering the cervix) placental abruption (placenta separating from the uterus)

Why do I feel so weak 5 months pregnant? ›

Feeling hot, tired or faint is quite common during pregnancy. Hormonal changes taking place in your body at this time can make you feel nauseous and emotional. Being tired and run-down can also make you feel low.

Why am I not big at 5 months pregnant? ›

Women who are pregnant for the first time may start showing later because their muscles haven't been stretched by a previous pregnancy. You're tall. Tall women or women who have long torsos may have a smaller-looking bump, because they have more space for the baby to fill, lengthwise.

Which week is best for delivery? ›

Babies born too early may have more health problems at birth and later in life than babies born later. Being pregnant 39 weeks gives your baby's body all the time it needs to develop.

What is the position of baby in 5th month? ›

The ideal position for a fetus just before labor is the anterior position — the fetus faces the pregnant person's back, and the head points toward the ground. Most fetuses settle into this position by the last month of pregnancy. The anterior position is also known as the vertex, cephalic, or occiput anterior position.

What is my baby doing at 21 weeks in the womb? ›

Week 21 – your 2nd trimester. As you start the 2nd half of your pregnancy, you'll be entering a period of rapid growth. Your baby is getting ready for life outside the womb and developing essential skills including sucking and breathing.

What is the hardest month of pregnancy? ›

What pregnancy trimester is the hardest? For many women, the first trimester of pregnancy is often the hardest. During this period, your body is going through a major transformation and needs time to adjust to the changes.

When do Braxton Hicks start? ›

Braxton Hicks contractions are sporadic contractions and relaxation of the uterine muscle. Sometimes, they are referred to as prodromal or “false labor" pains. It is believed they start around 6 weeks gestation but usually are not felt until the second or third trimester of the pregnancy.

When does 7 months pregnant start? ›

The weeks of pregnancy don't fit neatly into months, so seven months can begin between 25 weeks and 27 weeks pregnant and extend up to 28 to 31 weeks.

What is the 20 week ultrasound called? ›

This detailed ultrasound scan, sometimes called the mid-pregnancy or anomaly scan, is usually carried out when you're between 18 and 21 weeks pregnant.

What type of ultrasound is done at 20 weeks? ›

What is the 20-week ultrasound? A 20-week ultrasound, sometimes called an anatomy scan or anomaly scan, is a prenatal ultrasound performed between 18 and 22 weeks of pregnancy. It checks on the physical development of the fetus and can detect certain congenital disorders as well as major anatomical abnormalities.

How much does a 20 week fetus sleep? ›

Although it might not feel like it to you, your baby sleeps long hours, about 12 to 14 hours every day.

When does the baby start kicking hard? ›

Your baby will first start to wriggle and kick at around 18 to 20 weeks into your pregnancy. If this is your first baby, you might not realise that those little flutters in your tummy are your little one's way of saying hello.

What foods make baby move in the womb? ›

Babies are most active after meals or if you've just had some caffeine or sugar. You can help nudge baby into wiggling with a glass of cold milk (or anything else chilly and sweet) and lying on your side to increase blood flow to baby.

When can I touch my stomach and feel my baby? ›

4 months into your pregnancy, your baby will also feel it when you stroke the skin of your tummy: rub your hand against your stomach, gently push and stroke it… and soon your baby will start responding with little kicks, or by curling up into your palm!

What causes babies to come early? ›

These three risk factors make you most likely to have preterm labor and give birth early: You've had a premature baby in the past. You're pregnant with multiples (twins, triplets or more). You have problems with your uterus or cervix now or you've had them in the past.

What is the earliest a baby has survived? ›

At what week in pregnancy can a baby survive outside the womb? The earliest a baby has been born and survived is 21 weeks and 5 days. Two babies born prematurely hold the record for this.

How many weeks is full term? ›

What is a full-term pregnancy? Pregnancy usually lasts about 40 weeks (280 days) from the first day of your last menstrual period (also called LMP) to your due date. Your due date is the date that your provider thinks you will have your baby.

Is 22 weeks 5 or 6 months pregnant? ›

How far along is 22 weeks? At 22 weeks, you are approaching the end of your fifth month of pregnancy. If you're wondering what trimester that is, you're in the second trimester.

How many weeks makes 5 months pregnant? ›

At 20 weeks pregnant, you are five months along and halfway through your pregnancy.

Which month is 22 weeks pregnant? ›

How many months is 22 weeks pregnant? You are in your fifth month.

What do babies do in the womb all day? ›

Just like newborns, fetuses spend most of their time sleeping. Indeed, throughout much of the pregnancy, your baby sleeps 90 to 95% of the day. Some of these hours are spent in deep sleep, some in REM sleep, and some in an indeterminate state—a result of their immature brain.

What to expect at 20 weeks of pregnancy? ›

As well as kicking, punching and turning around, your baby could be sucking their thumb – this develops their sucking reflex, which they'll need to feed once they're born. You may start to feel a bubbling or fluttering in your belly – this could be your baby moving around.

What does a 20 week fetus look like? ›

Your baby measures about 16 cm from head to bottom and weighs about 320 gm. Your baby is covered in vernix – a white, creamy substance that protects baby's skin from amniotic fluid. The heart is beating at 120-160 beats per minute. Muscles are growing, and your baby is moving around a lot.

How big is your uterus at 20 weeks? ›

At around 20 weeks of pregnancy, the top of the uterus reaches the navel, and your fundal height would be about 7 to 8.5 inches (18 to 22 centimeters). Here's a fun fact about the fundal height measurement: Your fundal height in centimeters is roughly equal to the number of weeks you are pregnant!

How do I know if my second trimester is healthy? ›

Prenatal Visits During the Second Trimester
  1. Any current symptoms or discomforts.
  2. Your weight.
  3. Your blood pressure.
  4. Urine test. ...
  5. Growth, size and development of the fetus.
  6. Size of the uterus. ...
  7. Height of the fundus (top of the uterus), starting at 20 weeks of gestation.
  8. Fetal heartbeat.

How do I know my baby is not okay in the womb? ›

Certain types of pain in the early stages of pregnancy could be a sign of miscarriage or an ectopic pregnancy: persistent or severe pain on one side of your abdomen or pain in the tip of one shoulder. severe pain or cramping in your lower abdomen (tummy)

Is it normal to not feel anything at 20 weeks pregnant? ›

Some women can feel their baby move as early as 15 weeks, while others don't notice it until closer to 20 to 22 weeks. It varies for each person and depends on a number of factors. There's no difference in the health of a baby whose movements are felt sooner rather than later.

Is it normal not to feel baby everyday at 20 weeks? ›

You should start to feel your baby move between around 16 to 24 weeks of pregnancy. If this is your first baby, you might not feel movements until after 20 weeks. If you have not felt your baby move by 24 weeks, tell your midwife.

What can go wrong in 2nd trimester? ›

Second Trimester Pregnancy Complications
  • Bleeding.
  • Preterm labor.
  • PPROM.
  • Cervical incompetence.
  • Preeclampsia.
  • Injury.
Dec 3, 2018

What should be avoided in second trimester? ›

Foods to avoid
  • raw meat.
  • raw eggs.
  • raw fish.
  • fish with high levels of mercury, including swordfish, shark, tilefish, and king mackerel.
  • unpasteurized dairy products.
  • soft cheeses, such as Brie, blue cheese, and feta.
  • ready-to-eat meats and seafood.
Jun 27, 2018

What should you not do in your second trimester? ›

What to avoid during the second trimester
  • Elective ultrasounds. Your baby does a lot of growing in the second trimester, so there's certainly plenty to see. ...
  • Sleeping or doing exercises on your back. ...
  • Hot tubs and saunas. ...
  • Hot yoga. ...
  • Raw or undercooked foods. ...
  • Unpasteurized dairy and juices.
Aug 12, 2022

What are signs something is wrong with baby? ›

Crying, irritability, or twitching which does not improve with cuddling and comfort. A sleepy baby who cannot be awakened enough to nurse or nipple. Any signs of sickness (for example, cough, diarrhea, pale color). The baby's appetite or suck becomes poor or weak.

How do I know my baby is healthy in the womb without ultrasound? ›

The heart of the baby starts to beat around the fifth week of pregnancy. To confirm the heartbeat of your baby, the doctor may conduct a non-stress test. The test monitors the heart rate of the baby and provides information about the potential threat, if any. A healthy heartbeat is between 110 to 160 per minute.

Can you tell if something is wrong with your baby? ›

In general, call your baby's doctor if your infant seems especially sluggish, is refusing food or drink, is vomiting (not just spitting-up), has diarrhea, or has a fever. Remember, if you're worried, there's probably a good reason even if you don't recognize it, so don't hesitate to call your baby's doctor.

What can go wrong at 20 weeks? ›

Some of the conditions that can be seen on the scan, such as cleft lip, will mean the baby may need treatment or surgery after they're born. In a small number of cases, some very serious conditions are found – for example, the baby's brain, kidneys, internal organs or bones may not have developed properly.

How do I stop worrying about a miscarriage in the second trimester? ›

Easing Your Miscarriage Fears

Take time to practice mindfulness, meditation, and take some time for yourself. This could include any stress-reducing activities you enjoy like yoga or going for a walk.

What do they check on 20 week scan? ›

The scan will look in detail at your baby's bones, heart, brain, spinal cord, face, kidneys and abdomen. In most cases the scan will show that your baby appears to be developing as expected but sometimes a condition is found or suspected. Some things can be seen more clearly than others.

How many times should my baby move at 20 weeks? ›

There's no set number of baby movements you should feel. The important thing is to get to know your baby's usual pattern of movements. Once you start to feel your baby's movements, you should feel your baby moving right up until they're born.

How can I get my baby to kick? ›

8 Tricks for Getting Your Baby to Move in Utero
  1. Have a snack.
  2. Do some jumping jacks, then sit down.
  3. Gently poke or jiggle your baby bump.
  4. Shine a flashlight on your tummy.
  5. Lie down.
  6. Talk to baby.
  7. Do something that makes you nervous (within reason)
  8. Sing a lullaby or turn up the music (just make sure it's not too loud)
Feb 24, 2023


1. 20 weeks pregnant: Time to ask about your baby's heart - Boston Children's Hospital
(Boston Children's Hospital)
2. गर्भावस्था का २० वा सप्ताह | 20th week - Pregnancy week by week | Dr. Supriya Puranik, Pune
(Dr Supriya Puranik IVF, Pune)
3. Pregnancy Week 20 www.mumsandbaby.com
4. 20 Weeks Pregnant - Your 20th Week Of Pregnancy
(Ultrasound Ireland: Medical, Pregnancy Scans & IVF Fertility Scans)
5. 20 Weeks Pregnant | Pregnancy Week By Week Symptoms | The Voice Of Woman
(The Voice Of Woman)
6. Your baby at 20 weeks | Week-by-week pregnancy | MadeForMums


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