Here's a peek at what's going on inside your body during the amazing 40 weeks of pregnancy. Watch your belly — and your baby — grow! Back to Articles Related Articles A Week-by-Week Pregnancy Calendar Our week-by-week illustrated pregnancy calendar is a detailed guide to all the changes taking place in your baby - and in you! Read More Pregnancy Slideshow (Baby) This week‑by‑week pregnancy calendar shows you some of the important developments taking place as your baby grows. Read More Pregnancy & Newborn Center Advice and information for expectant and new parents. Read More Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.