Online calculators for pregnancy.

Ovulation Calculator

Ovulation and fertile window calculation

It is difficult to know when ovulation exactly occurs. According to studies, at least 88% of ovulations occur within +/- 3 days of the mid-point day of the menstrual cycle. The fertile window or days during which the woman can get pregnant usually begins approximately five days prior to ovulation and lasts up to 24 hours after ovulation. With these assumptions, women are likely to achieve pregnancy during days 8-19 of their cycles.

This calculator uses the calendar based standard days method (SDM) for family planning to find the day you are most likely to ovulate and accordingly the days during which you can become pregnant. If you are trying to conceive, you should probably visit your gynaecologist for advice.

Android app: Use this ovulation calculator offline with our all-in-one calculator.


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Disclaimer:- The content of this website does not constitute medical advice and is solely meant for information purpose.