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Predict ovulation, fertile window, and next period with a 6-month forecast.
Estimate your most fertile days from your last menstrual period, average cycle length, and luteal phase length. See your predicted ovulation day, 6-day fertile window, implantation window, next period date, a color-coded view of your current cycle, and a 6-month forward forecast. Everything is calculated instantly in your browser — nothing is uploaded or stored.
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