20 Weeks Pregnant: What to Expect

At 20 weeks pregnant, your baby is the size of a banana. Learn about your baby's development, common symptoms, and helpful tips for this stage of pregnancy.

Week 20 Snapshot: 🍌 Baby is the size of a banana — 6.46 inches, 10.2 oz
Week 20 of 40
Trimester Second Trimester
Baby Size 🍌 Banana
Baby Weight 10.2 oz
Weeks Left 20 weeks
Progress 50%
Pregnancy Progress: 50% complete
T1 T2 T3
Week 20 140 days to go

Baby Development at Week 20

Key milestones and developments happening this week:

Common Symptoms at 20 Weeks

You may experience some or all of these symptoms during week 20:

Tips for Week 20

Nearby Weeks Comparison

See how your baby grows in the weeks around week 20:

Week Baby Size Length Weight Trimester
Week 16 Avocado 4.57 in 3.5 oz Second Trimester
Week 18 Bell pepper 5.59 in 6.7 oz Second Trimester
Week 22 Papaya 7.6 in 15.2 oz Second Trimester
Week 24 Ear of corn 11.81 in 1.3 lbs Second Trimester
← Week 18 Week 22 →

What Happens at 20 Weeks Pregnant?

At 20 weeks pregnant, you are in the second trimester of your pregnancy. Your baby is about the size of a banana, measuring approximately 6.46 inches and weighing about 10.2 oz. This is an exciting time as your baby continues to grow and develop new capabilities each week.

During week 20, your body is working hard to support your growing baby. The placenta continues to provide essential nutrients and oxygen through the umbilical cord. Your blood volume has increased significantly to support the pregnancy, and your body is producing hormones that help maintain the pregnancy and prepare for delivery.

With 20 weeks remaining until your estimated due date, you are 50% of the way through your pregnancy. Remember that a full-term pregnancy is considered 39 to 40 weeks, but babies can arrive anywhere from 37 to 42 weeks. Only about 5% of babies are born on their exact due date, so think of your due date as an estimate rather than a deadline.

Regular prenatal care is essential throughout your pregnancy. Your healthcare provider will monitor your baby's growth, check for any complications, and help you prepare for a healthy delivery. Do not hesitate to contact your provider if you experience any concerning symptoms or have questions about your pregnancy.

Frequently Asked Questions

How big is my baby at 20 weeks pregnant?

At 20 weeks pregnant, your baby is about the size of a banana, measuring approximately 6.46 inches. The baby weighs about 10.2 oz.

What are common symptoms at 20 weeks pregnant?

Common symptoms at 20 weeks of pregnancy include baby movements are stronger and more regular, shortness of breath as the uterus pushes up, and stretch marks may appear. Every pregnancy is different, so you may experience all, some, or none of these symptoms. Contact your healthcare provider if you have concerns about any symptoms.

What trimester is 20 weeks pregnant?

At 20 weeks, you are in the second trimester (trimester 2 of 3). The second trimester spans weeks 14-26 and is often called the "golden period" as many early symptoms ease.

How many weeks are left at 20 weeks pregnant?

At 20 weeks pregnant, you have 20 weeks remaining (140 days) until your estimated due date at 40 weeks. You are 50% through your pregnancy. Keep in mind that only about 5% of babies arrive on their exact due date.

Related Pregnancy Resources

← Pregnancy Week by Week | Health & Fitness Calculators