🌸 FertilityCycle Tracking

Ovulation Calculator

Find your estimated ovulation date and 5-day fertile window based on your last period and cycle length. Includes a 3-month fertility calendar. For planning or awareness: not a contraceptive method.

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Medical disclaimer: This tool provides estimates for informational purposes only. It is not a contraceptive method and does not replace medical advice. Cycle lengths vary. Consult an OB-GYN or certified midwife for fertility guidance.
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Enter your cycle details

Add your last period date and cycle length to see your fertile window.