If My Due Date Was March 1 When Was My Baby Conceived?

If you ovulated early or late during last menstrual period then accurate date of conception can not be calculated. If you have 28 days cycle and ovulated at mid of the cycle then your possible date of conception can be 8/6/2009. Honestly speaking, exact date of conception can not be calculated because every woman can have different ovulation days and sex does not mean pregnancy on same day. Sex before 4-5 days of ovulation can also lead to pregnancy. All calculation done for knowing date of conception are based on normal conditions like 28 days cycle and ovulation at mid of the cycle.