conception Calculator tool

Last menstrual period is: Year month Day
Due date:
conception date for:
early pregnancy end time (12 weeks) :
mid pregnancy end time (27 weeks) :
pregnancy end time (40 weeks) :

Expected date of birth. The due date is not an exact delivery date, and scientists have estimated that only about 53 percent of women give birth on their due date. Since it is difficult for every pregnant woman to accurately judge the time of conception, it is medically prescribed that from the first day of the last menstruation, the entire pregnancy is 280 days and 10 gestation months (each gestation month is 28 days).