Estimateur d'ovulation — Calculateur de fenêtre fertile

Entrez la date de début de vos dernières règles et la durée moyenne de votre cycle pour estimer quand vous ovulez et vos jours les plus fertiles.

Estimated ovulation date
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Fertile window
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Next period
Règles Fenêtre fertile Autres jours

Ceci est une estimation basée sur des moyennes. La durée du cycle varie d'un mois à l'autre. Pas fiable pour la contraception. Consultez votre médecin pour la planification familiale.

Questions fréquentes

How accurate is this ovulation estimator?
Ovulation estimators based on cycle length provide a reasonable estimate for women with regular cycles. However, ovulation can vary by several days each month due to stress, illness, travel, or hormonal fluctuations. For greater accuracy, combine this with ovulation predictor kits (OPKs) or basal body temperature tracking.
What are the signs of ovulation?
Common signs include a slight rise in basal body temperature, changes in cervical mucus (becomes clear, stretchy, and egg-white-like), mild pelvic pain or cramping on one side (mittelschmerz), increased libido, and breast tenderness. Some women also notice light spotting.
Can stress delay ovulation?
Yes. Physical or emotional stress can delay or even suppress ovulation by disrupting the hormonal signals from the hypothalamus and pituitary gland. This is why cycles may become irregular during stressful periods, illness, or major life changes.
What if my cycles are irregular?
If your cycle length varies significantly (more than 7 days between shortest and longest cycles), a calendar-based estimator will be less reliable. Consider tracking ovulation with OPKs, basal body temperature, or cervical mucus monitoring. Persistent irregularity warrants a conversation with your healthcare provider.

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