How Many Days After My Period Can I Get Pregnant Calculator

Estimate your fertile window: how many days after the first day of your period you're most likely to conceive. Based on your cycle length. For guidance only; not medical or contraception advice.

From day 1 of one period to day 1 of the next. Typical is 28.

When can I get pregnant after my period?

Conception is most likely in the few days before and around ovulation. Ovulation usually happens about 14 days before your next period, so in a 28-day cycle that's around day 14. The fertile window is often taken as the 5 days before ovulation and the day after. So for a 28-day cycle, that's roughly days 9–15 after the first day of your period. This calculator uses your cycle length to estimate that window. Cycles vary; this is for guidance only and is not a form of contraception or medical advice.

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