Calculadora de Ciclo Menstrual
Ingresar datos del ciclo
d
d
Próxima menstruación
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Menstruación
Ventana fértil
Ovulación
—
días para el período
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día de ovulación
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días fértiles
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día del ciclo
Próximos 6 ciclos
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How does the menstrual cycle calculator work?
The tool predicts future periods based on the first day of your last period and your average cycle length.
Cycle Phases
- Menstruation (days 1–5): Shedding of the uterine lining.
- Follicular phase: Egg maturation.
- Ovulation (day ~14 of 28-day cycle): Egg release — peak fertility.
- Luteal phase: Uterus prepares for possible fertilization.
Fertile Window
Highest chance of conception is in the 5 days before ovulation and on ovulation day itself.
⚠️ This tool provides estimates only. Cycles vary month to month. Consult your doctor for medical advice.
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