The French phrase “calculer la grossesse” translates to “calculate pregnancy” in English. This refers to the process of estimating gestational age and predicting the expected due date. Typically, this involves counting from the first day of the last menstrual period (LMP) and adding 40 weeks, or 280 days. While convenient, this method relies on regular menstrual cycles and accurate recall of the LMP. More precise methods, such as early ultrasound measurements, can provide a more accurate assessment, particularly in cases of irregular cycles or uncertain LMP.
Determining gestational age is fundamental to prenatal care. It guides the timing of important screenings and tests, helps monitor fetal development, and allows healthcare providers to anticipate potential complications. Historically, estimations relied heavily on the LMP and physical examination. Advances in medical technology, particularly ultrasonography, have significantly improved the accuracy of these calculations, leading to better prenatal care and outcomes. Accurate dating is also vital for making informed decisions regarding labor induction or Cesarean section, if necessary.
