Ovulation Calculator

Track your fertility window with ease

First Day of Last Period

Average Cycle Length (days)

Typically between 21-35 days

Luteal Phase Length (days)

Typically between 10-16 days

Next Ovulation Date

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Your most fertile day

Fertility Window

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Best time to try conceiving

Next Period

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Expected start date

Menstrual Cycle Overview

Menstruation

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Follicular Phase

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Ovulation

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Luteal Phase

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Ovulation Calculator © 2023 | This tool provides estimates only. Consult with a healthcare provider for medical advice.