Ovulation Calculator

If you’re trying to conceive, knowing when you ovulate can be very useful. This is because you’re most likely to get pregnant by having sex around the time of ovulation.

By using My BabyManual’s ovulation calculator, you will be able to find out when you’re most fertile during your monthly cycle – known as your fertile window – and therefore maximise your chances of conception.

All you need to do is enter the first day of your last period and the average number of days between periods (this is how long your cycle is).

If you would like to understand more about ovulation, you can read this expert article written by Dr Matt Prior.

Ovulation calculator

Please enter the date of the first day of your last period

Days in between periods

First day of the your period
Possible ovulation day
Possible first fertile day
Possible last fertile day