Naegele's Rule is a standard way of calculating the due date for a pregnancy. The rule estimates the expected date of delivery (EDD) by adding one year, subtracting three months, and adding seven days to the first day of a woman's last menstrual period (LMP). The result is approximately 280 days (40 weeks) from the LMP.
Famous quotes containing the word rule:
“Roman, remember that you shall rule the nations by your authority, for this is to be your skill, to make peace the custom, to spare the conquered, and to wage war until the haughty are brought low.”
—Virgil [Publius Vergilius Maro] (70–19 B.C.)