I had conceived n my due date is coming 9 Dec but I want to know exactly at which time period I got pregnant as we tried on day 13th, 14th, 15th then on 22nd morning my lmp was 4th of March n my avg cycle length is 28. I am eager to know becoz I heard d due date can be changed to few weeks before and after n that is becoz people usually don't know when they tried but I know the exact dates so want to confirm which time either the 13-15th or 22 nd p.