Stages of Pregnancy Week by Week
What My Baby Looks Like in Week 4
Discover how your baby is beginning to develop from a blastocyst to an embryo in week four. Plus, you may get a positive result on your
pregnancy test this week.
Illustrations Courtesy of the Sprout Pregnancy App
Track your baby's development on your iPhone and iPad and keep important pregnancy details at your fingertips.
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An Inside Look
Take a unique look at Baby's development inside the womb this week.
Your Growing Belly
A month-by-month photo gallery of pregnancy.
Your Growing Baby
Your baby is the size of a poppy seed.
Learn more about what's happening with your pregnancy this week including your baby's latest fetal development milestones, your changing body, and tips to help you along the way.
To-do tasks to get you through the next nine months.
Got a question? We've got answers from experts and parents who've been there.
Be prepared to share your detailed information with everyone: your medical history with your doctor, your 1 AM pickle cravings with your partner, and your contractions with your prenatal provider. Our A-Z pregnancy downloads make things easy!
Pregnancy News From Our Blogs
Pregnancy Tools You'll Love
Our must-read advice for moms-to-be with tips on labor, safety, and more.
Find out when to expect your new arrival.
See what gender the Ancient Chinese Birth Chart predicts.
Our downloads make pregnancy easier!