Calculateur de Date d'Accouchement — Formule
## Pregnancy Duration
A typical pregnancy lasts **40 weeks (280 days)** from the first day of the last menstrual period (LMP).
### Trimesters
| Trimester | Weeks |
|---|---|
| First | 1-12 |
| Second | 13-26 |
| Third | 27-40 |
A typical pregnancy lasts **40 weeks (280 days)** from the first day of the last menstrual period (LMP).
### Trimesters
| Trimester | Weeks |
|---|---|
| First | 1-12 |
| Second | 13-26 |
| Third | 27-40 |
Exemple Résolu
A woman who is 12 weeks and 0 days pregnant.
- Total days pregnant = 12 x 7 + 0 = 84 days
- Days remaining = 280 - 84 = 196 days
- Weeks remaining = floor(196 / 7) = 28 weeks
- Progress = 84 / 280 x 100 = 30.0%