Calculateur de Cycle
Saisir les données du cycle
d
d
Prochaines règles
—
Règles
Fenêtre fertile
Ovulation
—
jours avant les règles
—
jour de l'ovulation
—
jours fertiles
—
jour du cycle
6 prochains cycles
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À propos de l'outil
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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