The Conception Calculator

Due in March: When Did You Conceive?

Due dates & conception. Updated . Calculated with the standard pregnancy dating method used by ACOG and the NHS.

If your baby is due in March, conception most likely happened between June 8 and July 8 of the previous year.

Due March 1conceived around June 8
Due March 15conceived around June 22
Due at the end of Marchconceived around July 8

Each of these is the most likely date for that due date; the real day can sit a few days either side. For your own date, see the day-by-day posts or use the calculator.

Try the conception date calculator.

Conception Date Calculator: Find the most likely conception date from your due date.

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This article is general information, not medical advice. Talk to a doctor or midwife about your own pregnancy or fertility.