Calculateur de Grossesse : Date Présumée d'Accouchement et Trimestres
Calculateur de Grossesse : Date Présumée d'Accouchement et Trimestres
Cet outil fonctionne à 100% côté client dans votre navigateur. Vos données biométriques, de santé ou de temps ne sont jamais enregistrées sur un serveur distant.
Formule & Méthode de Calcul
Date présumée d'accouchement (DPA) = Date des dernières règles + 7 jours - 3 mois + 1 an
Naegele's rule is the global obstetric standard. It assumes a standard 28-day menstrual cycle and computes a standard 280-day (40 week) human gestation period.
Bonnes Pratiques & Conseils
- Adjust for Cycle Length: Naegele's rule assumes a 28-day cycle. If a patient has a highly regular 35-day cycle, ovulation occurs later, and the Estimated Due Date must be manually pushed back by 7 days to remain accurate.
- Understand the Conception Paradox: 'Week 1' of pregnancy occurs before conception actually happens. Gestation is measured from the LMP, meaning when a positive test occurs at '4 weeks', the embryo has only existed for roughly 2 weeks.
- Prepare for the Window, Not the Day: Only 4% of babies are born exactly on their calculated EDD. Obstetricians consider any delivery between 37 weeks and 42 weeks to be a normal, full-term birth.