Due Date Calculator Due Date Reverse

If your doctor told you the baby was born early you may have to adjust the results back a cycle to find the correct data of conception.

Due date calculator due date reverse. And that s how most healthcare providers do it. You can also use this calculator as a reverse due date calculator to find out when you became pregnant. Due date by sonogram reverse calculation first day of last menstrual period month 1 january 2 february 3 march 4 april 5 may 6 june 7 july 8 august 9 september 10 october 11 november 12 december date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 year 2012 2013 2014 2015 2016 2017 2018 2019 2020. For a regular 28 day cycle pregnancy is estimated to be 280 days or 40 weeks from your last menstrual period and 266 days or 38 weeks from the date of ovulation.

We just tack 14 days onto that date to account for the first day of your last menstrual cycle through when an average day of ovulation which may be day 14. This method is based on the idea that women typically ovulate about 2 weeks after their period starts and pregnancy typically lasts about 38 weeks. This is because pregnancy due dates are based on the 28 day ovulation cycle 3 moreover the date of conception does not necessarily suggest it s the time of intercourse. Although it may seem like it a reverse due date calculator isn t magic it s just some simple math.

The most common way to calculate your due date is by counting 40 weeks from the first day of your last menstrual period lmp. The date is usually predicted to be 280 days from the first day of your last menstrual cycle. Pregnancy lasts on average 266 days. Calculate your conception date this calculator presumes the child was born on or around the expected due date.

Our due date calculator provides so much more than an estimated birth date get your intuitive visual pregnancy progress report today.