Keep track of your baby's development each week. Personalize your calendar by entering (or calculating) your due date* below.

STEP 1: Enter Your Due Date

(If you're not sure what your due date is, input the first day of your last menstrual period, and let us calculate your expected due date for you.)

Trying to conceive? Use our Ovulation Calculator to determine your most fertile days.

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*This due date is an approximation. You should always consult your health care provider for confirmation of your exact estimated due date.

"Only about 1 in 20 women delivers on her exact due date. Your due date actually just suggests a 5-week window during which it would be healthy for your baby to be born. The week surrounding your due date is when he is most likely to be born."

Information reprinted with permission from GREAT EXPECTATIONS by Sandy Jones and Marcie Jones. Copyright ©2004, by Sandy Jones and Marcie Jones.