Pregnancy Due Date Calculator

Pregnancy Due Date Calculator is a useful tool that helps expectant parents estimate the

expected date of delivery (EDD) based on key pregnancy milestones.

The most common method is to calculate the due date by adding 280 days (or 40 weeks) to the first day of the woman’s last menstrual period (LMP). This is because ovulation typically occurs about two weeks after the LMP, and a full-term pregnancy lasts about 38 weeks from conception. By inputting the LMP, or alternatively the date of conception if known, the calculator provides an estimated due date, which serves as a guide for both parents and healthcare providers in planning prenatal care.

While due date calculators offer a helpful prediction, it is important to remember that they are only estimates. Most babies are not born exactly on their due date; in fact, only about 5% of births occur on the predicted day. Various factors, including cycle length, ovulation timing, and individual health, can influence the accuracy of the estimate. Despite this, the calculator remains a valuable starting point for tracking fetal development, scheduling prenatal tests, and preparing for childbirth.