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نظرة عامة

Ovulation is when an ovary releases an egg, and the days around it are the most fertile of the cycle. This calculator estimates your likely ovulation day and fertile window from your last period and cycle length, in your browser. It is a guide, not a contraception or fertility guarantee.

كيفية الاستخدام

1. 1

   Enter your last period date

   The first day of your most recent period.

2. 2

   Enter your cycle length

   The average number of days from one period to the next.

3. 3

   Read your fertile window

   The tool highlights the estimated ovulation day and surrounding fertile days.

كيف يعمل

Ovulation typically occurs about 14 days before the next period starts, so the tool counts backward from your estimated next period based on cycle length. The fertile window spans roughly the five days before ovulation plus the ovulation day itself, because sperm can survive several days. Cycle variability means these are estimates; ovulation tests or temperature tracking add precision.

متى تستخدمه

Identifying the days most likely for conception. Understanding your cycle for family planning. Tracking your fertile window alongside other signs.

الأسئلة الشائعة