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BumpStories
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Week 21 of Pregnancy

Your baby is the size of a Carrot

10.5 in (26.7 cm)12.7 oz (360 g)
Second Trimester

Baby Development This Week

Baby's movements are becoming more coordinated. Eyebrows and eyelids are fully formed. Baby has established sleep and wake cycles.

What You Might Be Feeling

Stretch marks may begin appearing. Braxton Hicks contractions (practice contractions) may start.

Medical Appointments and Tests

Start thinking about childbirth education classes if you'd like to take them.

Frequently Asked Questions

How big is my baby at 21 weeks pregnant?

At week 21, your baby is about the size of a carrot — approximately 10.5 inches long and weighing about 12.7 ounces.

What should I expect at 21 weeks pregnant?

At 21 weeks, your baby is the size of a carrot. Every pregnancy is different, but common experiences at this stage include physical changes, new symptoms, and exciting developmental milestones for your baby.

Want to know your due date?

Get your personalized pregnancy story card with milestones, zodiac sign, and more.

Calculate Your Due Date
Note: This calculator provides estimates based on standard medical formulas. Please consult your healthcare provider for personalized guidance.