Women's health

Ovulation window

Estimate your most fertile days from your cycle.

First day of your last periodUse the first day of bleeding, not the last.Average cycle lengthDays from the first day of one period to the next (typically 21–35).

Enter the first day of your last period and your average cycle length (20–45 days) to estimate your fertile window.

This is a general educational estimate, not a diagnosis or medical advice. For anything personal or urgent, please message Dr. Jegr's team on WhatsApp or see a dentist or doctor in person.

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