Ovulation Calculator

What's the key to getting pregnant? Know when you're ovulating!

Just enter the first day of your last period and how long your cycle usually lasts, and we'll tell you when you'll likely be most fertile, plus your approximate due dates if you do conceive. NOTE: This tool only provides approximate dates, and cannot predict pregnancy, nor should it be used to avoid pregnancy. If you have really irregular cycles, try monitoring your basal body temperature and cervical mucus to determine when you're ovulating.

Based on what you told us, your most fertile window would be from

If you were to conceive during that time, your due date would be somewhere around

It isn't unusual for pregnancy to take several months, so don't stress! Here are your most likely fertile windows over the next five months, as well as prospective due dates if you do conceive. Have fun (wink, wink), and good luck!!