If my husband and i had sex on the 3rd of March (protected) 7 March (protected) and i got my LMP 17th March 12 then had sex 24 March and 31 March (unprotected)when did i concieve? EDD is 22 Dec 12 and i thought this past Saturday 2 June i completed 9 weeks, but my doctor states it was 11 weeks. Why is that? Im confused and it's not helping that i cant help ease my husband's mind either. Please help me.