The Due Date
Also during this first visit, the doctor will try and predict your due date. This is also referred to as the estimated date of delivery, or EDD, or the estimated date of confinement, or EDC.
An average pregnancy is 280 days, or 40 weeks, from the first day of the last menstrual period. However, a normal pregnancy can last between 37 weeks and 42 weeks. Only about 5 percent of babies are born on their exact due date. Most women give birth within two weeks of the predicted date.
The due date helps your doctor measure the growth of the fetus and the progress of your pregnancy. It also helps set the timing for some tests that are most accurate when they are done at certain times in pregnancy.
Source: American College of Obstetricians and Gynecologists
All content here, including advice from doctors and other health professionals, should be considered as opinion only. Always seek the direct advice of your own doctor in connection with any questions or issues you may have regarding your own health or the health of others.