Pregnancy Week 1

Learn what's happening in week one, even before your baby is conceived, and find out why your due date is calculated from this point on.

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Your Changing Body

For most women, trying to conceive means making a few smart lifestyle swaps -- all in the name of conceiving the healthiest baby possible. So now is the time to start thinking about any health changes you could make to ensure that your body is in the best shape for carrying and nurturing your baby.


Your Developing Baby

Baby? What baby? This concept may be a little hard to wrap your head around, but even though you're technically in the first week of pregnancy, you're not quite expecting -- yet.


Tip of the Week

Speak with your doctor about adding a prenatal multivitamin to your morning routine. At least 400 micrograms of folic acid every day can help prevent certain birth defects that affect your baby's brain, heart, and spinal cord, especially if you take it before you conceive and in the early weeks of your pregnancy


Your Week 1 To-Do List
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1. Start taking a prenatal vitamin.


An Inside Look
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Take a unique look at Baby's development inside the womb this week.


Your Pregnancy Calendar
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Share and celebrate your pregnancy with other moms-to-be.


Ask Parents About Week 1

We've got answers to your questions from experts and parents who've been there.



See All Questions or Ask Your Own »
More About Your Pregnancy in Week 1
Your Baby
Your Body
Your Self
Diet & Exercise
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Get Expert Tips for a Healthy Pregnancy

Our must-read advice for moms-to-be with tips on labor, safety, and more.


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Calculate Your Due Date

Find out when to expect your new arrival.


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29 Pregnancy Charts & Checklists

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