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25 Day Cycle Overview
Ovulation: Day 11

High Fertility: Day 612 | Next Period: Day 26

Phase Breakdown & Health

A 25-day cycle is composed of two main halves. The first is your Follicular Phase (lasting roughly 11 days). The second is your Luteal Phase, which is structurally fixed at around 14 days. If you recently stopped hormonal birth control, expect it to take 3-6 months for your natural 25-day rhythm to fully stabilize.

Your Specific Cycle Metrics

Cycle DayBiological Event
Day 1First day of period (Full Flow)
Day 6 - 12High Fertility Window
Day 11Estimated Ovulation
Day 26Next expected period / Testing Day

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