Due Date Calculator Pregnancy Calendar

Your due date is calculated by adding 280 days 40 weeks to the first day of your last menstrual period assuming a 28 day cycle.

Due date calculator pregnancy calendar. On you will be weeks pregnant. Track important milestones within the first second and third trimesters of pregnancy or explore hundreds of other calculators addressing health fitness math finance and more. The most common way to calculate your pregnancy due date is by counting 40 weeks from the first day of your last menstrual period lmp.

The estimated due date edd or edc is the date that spontaneous onset of labor is expected to occur. The due date may be estimated by adding 280 days 9 months and 7 days to the first day of the last menstrual period lmp. If your menstrual cycle length is the average length 28 day cycle your menstrual cycle probably started about two weeks before you conceived.

Your due date calculate. Leave 28 if unsure. This is the method used by pregnancy wheels.

About two weeks after last menstrual period first trimester ends 12 weeks. And that s how most healthcare providers do it. Pregnancy milestones such as the first time the baby s heartbeat is heard around week 9 or 10 though it can vary and when you first feel fetal movement on average between 18 and 22 weeks but it can be earlier or later can give clues as to whether your due date is accurate.

Determining the estimated due date. This free pregnancy calculator provides an estimated pregnancy schedule based on due date last period date ultrasound date conception date or ivf transfer date. Named after a german obstetrician who practiced in the early 1800 s naegele s rule predicts childbirth to occur 280 days after the first day of the last menstrual period.

Naegele s rule is what this due date calculator and pregnancy calendar is based on. Default 28 optional. Second trimester ends 27 weeks.