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Estimated Time of Conception »

Calculate the date of delivery of your baby by using this unique calculator. Just enter the 1st day of your last menstrual period below and you can find the expected date of delivery. Pregnancy, on average, lasts 267 days (38 weeks) from conception. If you positively know your conception date, you can add 267 days to it for your due date. Simply enter Last Date of your Menstrual Period (LMP) and we will tell your Estimated due date(EDD).

(MM/DD/YYYY format)
pregnancies are dated in weeks starting from the first day of a woman's last menstrual period (LMP)
(22 to 45)
(defaults to 28)
The length of the cycle can be measured from Day 1 of one cycle (bleed) to Day 1 of the next .
(9 to 16)
(defaults to 14)
The luteal phase of the menstrual cycle begins on Day 14, after ovulation occurs and continues until Day 1 of your next period. Remember, Day 1 is the day your period starts.