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WomensHealth.gov - The Federal Source for Women's Health Information Sponsored by the H H S Office on Women's Health
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Healthy Pregnancy
Healthy Pregnancy                       

What Happens in Each Stage of Pregnancy

Woman sleepingGet the details on each trimester and find out what's happening with you and your baby in these three stages.

1st Trimester (Week 1 to the end of week 12)

Congratulations! Your journey to motherhood is underway. Check out the changes in your body and how your baby grows during the first three months.Ultrasound

2nd Trimester (Week 13 to the end of week 26)

You're adjusting to the precious life inside you. Learn what to expect in the second trimester.

3rd Trimester (Week 27 to the end of the pregnancy)

Pregnant womanYou're in the home stretch! Start thinking about breastfeeding, learn to spot the signs of labor and get the facts on cesarean sections.

Current as of March 2007

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