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Fertility Calculator

Use our free ovulation calculator to find your best days to conceive.
Trying to have a baby?

Our fertility and ovulation calculator can tell you the best days to do the deed so you can get pregnant ASAP. We'll even tell you your baby's possible due date if you conceive this month.

To figure out which days you're most fertile, give us some info about your menstrual cycle:
The length of your cycle is the number of days between the first day of your last period and the first day of your next period.
* If your cycle is greater than 35 days, or less than 25 days, you may not be ovulating. Please consult your doctor.