20 Weeks Pregnant
Your baby is the size of a

At 20 weeks pregnant, you’ve made it to the halfway point! Not only does this exciting time bring some noteworthy baby developments, but it may also be when you really feel your baby wriggling around inside you. We've gathered some key insights and information on what happens at 20 weeks pregnant, including baby development milestones and symptoms you may be experiencing, so keep reading to learn all about this week and what's to come.
Highlights at 10 Weeks Pregnant
Here's a quick look at some of the highlights at 20 weeks pregnant:
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20 Weeks Pregnant: Your Baby's Development
There are lots of fetal developments at 20 weeks pregnant to learn about and celebrate—below are just a few of them.
Are you 20 weeks pregnant with twins and wondering what your little ones might be up to? Find out more about what’s happening week to week in twin pregnancy.
How Many Months Is 20 Weeks Pregnant?
Although it’s more common to refer to your pregnancy in weeks, you may be wondering how many months that translates to. The 40 weeks of pregnancy can be grouped into months in various ways; however, at 20 weeks, you’re most likely in your fifth month of pregnancy.
What trimester is 20 weeks? At 20 weeks pregnant, you’re in your second trimester, and perhaps some troublesome symptoms such as nausea and extreme fatigue have passed.
How Big Is a Baby at 20 Weeks Pregnant?
At 20 weeks pregnant, your baby is about the size of a bell pepper. Your little one weighs close to 11 ounces and measures more than 6 inches in length, crown to rump—you could cup your little one in the palms of your hands.
Your Baby: What Does 20 Weeks Pregnant Look Like?
Check out the visual below if you’ve been asking yourself “What does a baby look like at 20 weeks pregnant?”
Your Body at 20 Weeks Pregnant
Now or very soon, you’ll experience quickening, which is when you feel your baby move for the first time.
Both the timing and the actual sensation vary from woman to woman—this is another way in which each pregnancy is unique—but you may sense tiny flutters or rumblings in your tummy! In the next few weeks, you might also detect some rhythmic jerking—baby hiccups!
20 Weeks Pregnant: Your Symptoms
At 20 weeks pregnant, here are some of the symptoms you may be experiencing:
□ Constipation. Hormonal activity and your growing baby pushing against your intestines can lead to constipation. Although this condition can be uncomfortable, drinking more water and eating more fiber can help get things moving..
□ Congestion and nosebleeds. Increased levels of hormones and extra blood volume during pregnancy can make the mucous membranes in your nose swell and dry out. This can lead to both congestion and nosebleeds. Some ways to reduce congestion and bleeding at 20 weeks pregnant include using a humidifier to moisten the air and drinking lots of water to stay hydrated.
□ Lower back pain. At 20 weeks pregnant, as your belly continues to grow and you gain pregnancy weight, you might find your lower back hurting, particularly toward the end of the day. There are a few things you can do to prevent or ease this lower back pain at 20 weeks pregnant, including wearing low-heeled shoes (not high heels but not completely flat shoes either), doing gentle exercise that helps stretch and strengthen your back muscles, and wearing a belly support band.
□ Forgetfulness. You may be having a hard time concentrating as well as you used to, and you may find that you’re forgetting small things. It might help to create checklists or reminders on your phone (or on paper or sticky notes) and to give yourself some extra breaks while doing tasks that require your concentration.
□ Swollen feet. This condition can be caused by both weight gain and fluid retention, but a hormone called relaxin also contributes. This hormone relaxes ligaments and joints to help make it easier for your baby to pass through the pelvis during birth, but relaxin also loosens the ligaments elsewhere in your body—including those in your feet, causing them to spread. To help you feel more comfortable, you may need to go up a shoe size; also, try propping your feet up on a pillow or footrest as often as you can.
How Big Is a Pregnant Belly at 20 Weeks?
If you have a checkup at 20 weeks, your healthcare provider may check your uterus size by measuring the distance from your pubic bone to the top of the uterus, which is called the fundus.
This fundal height measurement gives your provider information about your baby’s growth. Wondering where the uterus is 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!
If you’re 20 weeks pregnant with twins, you might notice your belly bump growing more quickly than it would with a single baby.
What Does 20 Weeks Pregnant Look Like?
To get a better idea of what your belly might look like around 20 weeks pregnant, when you’re in your fifth month of pregnancy, check out the image below.
20 Weeks Pregnant: Things to Consider
With every week, you’re closer to meeting your little one, and that means you have lots to consider now and in the coming weeks. From ultrasound scans to preparing your home for a new arrival, check out some things to consider at 20 weeks pregnant:
20 Weeks Pregnant: Consult Your Healthcare Provider
If you have any questions or concerns at 20 weeks pregnant or at any time in your pregnancy, don't hesitate to contact your healthcare provider. Here are some common questions to ask at 20 weeks:
FAQS AT A GLANCE
Although pregnancy weeks can be grouped into months in various ways, at 20 weeks you’re usually considered 5 months pregnant.
20 Weeks Pregnant: Your Checklist
Check out this short to-do list to help you during your pregnancy journey:
□ Celebrate—you’re halfway there! Go out a date with your partner to mark this milestone or enjoy some “me-time” as a way to reflect on what your body has achieved so far and what’s to come in the second half of your pregnancy.
□ If you haven’t found out your baby’s gender yet, you might like to have some completely unscientific fun with our Chinese Gender Predictor.
□ If you now know the gender of your baby, you may want to organize a gender reveal party. The gender reveal can also be part of your baby shower. If you’d like your shower to have a gender reveal moment in it, you could share these gender reveal game ideas with the host.
□ The ultrasound at 20 weeks might be your first peek at your baby, and this can make parenthood seem even more real. Ask for a printout of the ultrasound image so you can start your baby's first photo album. In just a few months’ time, when your baby is born, you’ll be able to fill the album with many more prints.
How We Wrote This Article The information in this article is based on the expert advice found in trusted medical and government sources, such as the American Academy of Pediatrics and the American College of Obstetricians and Gynecologists. You can find a full list of sources used for this article below. The content on this page should not replace professional medical advice. Always consult medical professionals for full diagnosis and treatment.
- American College of Obstetricians and Gynecologists. Your Pregnancy and Childbirth: Month to Month, 6th ed. (Washington, DC: American College of Obstetricians and Gynecologists, 2015).
- ACOG. “A Partners Guide to Pregnancy.”
- ACOG. “How Your Fetus Grows During Pregnancy.”
- Kids Health. “Week 20.”
- Mayo Clinic. “Fetal Development.”
- Mayo Clinic. Guide to a Healthy Pregnancy, 2nd ed. (Rochester, MN: Mayo Clinic Press, 2018).









