hi well as you had your period on august 1st then around day 14 would have been your ovulation day give or take a day so have sex 2 to 7 days before that would have done it its takes male sperm 3 days to reach your womb and can live for up to 10 days max. so 2 weeks would be about right then your doctor would be basing his from your last period date so yes he's right. but dose it really matter when unless your not married and trying to workout who the father is by this calculation? hope this helps you. good luck
when did i most likey have sex to become pregnant? . i got my period on august 1st. i was expecting my period september 1st but it didn't come. i took a pregnancy test today the 10th. the test was positive and it said i might be 2 and up to 3 weeks since ovulation. it also said my doctor would date me at 4-5 weeks pregnant. i'm just really confused by all of this and i'd like an estimation on what day i had sex to become pregnant. thank you!