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Pregnancy Week by Week

cross section of the female belly in the 40th week of pregnancy

Looking for a week-by-week guide to pregnancy? You're in luck! We've got loads of expert-approved info about each week and trimester, including what's up with your growing baby and what changes to expect for yourself.

You'll find stunning fetal development videos, thousands of articles, and helpful tools like our Due Date Calculator and Baby Names Finder. Meet other parents-to-be in our online community, and get all of this and more in our free pregnancy app. Dive in, and congratulations!

First Trimester of Pregnancy

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Second Trimester of Pregnancy

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Third Trimester of Pregnancy

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Follow your baby's amazing development
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