Ovulation calendar: When am I most fertile? 

Your most fertile days

When is your most fertile period and when can you try a pregnancy test? Enter the data to calculate.

Calculate my cycle

*First day of your cycle = First day of last period
*Luteal phase = Days between ovulation and next period. Usually 14 days.

More tools

My due date When is your due date? Enter the date of your last period or ovulation and you'll know. (roughly)

My alternative due date A -according to research- more accurate way to determine your due date.

My fertile days Shows your most fertile days and when you can try a home pregnancy test.

Fetus development This interactive movie shows what pregnancy does to your body!

Calculate your BMI Calculate your BMI. (But not during your pregnancy)