Want to know your most fertile days?

Pregnancy - Ovulation calculator

Are you planning to get pregnant? Find out the most fertile days of your cycle with our ovulation calendar to increase your chances of getting pregnant. To find out when you are due to ovulate, simply enter your menstrual cycle information and the calculator will do the rest, it's that easy!

Ovulation calculator

Duration of your menstrual cycle in days:

First day of your last period:



Ovulation day:

Most fertile days:

Remember that this ovulation calculator is a tool which is based on statistics. The data provided are approximate dates based on a regular cycle lasting between 20 and 35 days. If your cycle is irregular, it may be more difficult to determine your ovulation day with this calendar. In that case, we advise you to talk to your gynaecologist.

In addition, the couple is advised to undergo a fertility study if you have been trying to conceive for more than a year without success (or more than six months if the woman is aged over 35).