First trimester: Your changing body

Although you will not look pregnant from the outside, your body is hard at work making significant changes. Your body is...

growing a placenta
adding breast tissue
increasing blood volume
making amniotic fluid
creating a baby

These are natural changes and you can trust your body to know what to do. Listen to your body's needs and adjust your lifestyle when necessary.

During the first 13 weeks of pregnancy, you barely look pregnant on the outside. On the inside, things are profoundly different.

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Common physical changes

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Pregnancy & Parenting Tips

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Special Topics

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Source: Allina Patient Education, Beginnings: Pregnancy, Birth and Beyond, fifth edition, preg-ahc-90026, ISBN 1-931876-25-8

First published: 10/04/2002
Last updated: 05/01/2008

Reviewed by: Allina Patient Education experts

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