Calculadora de Fecha de Parto — Fórmula

Pregnancy Duration

A typical pregnancy lasts 40 weeks (280 days) from the first day of the last menstrual period (LMP).

Trimesters

TrimesterWeeks First1-12 Second13-26 Third27-40

Ejemplo Resuelto

A woman who is 12 weeks and 0 days pregnant.

  1. Total days pregnant = 12 x 7 + 0 = 84 days
  2. Days remaining = 280 - 84 = 196 days
  3. Weeks remaining = floor(196 / 7) = 28 weeks
  4. Progress = 84 / 280 x 100 = 30.0%