Conceive date

Michele
My doctor asks when we had sex..but we have sex all the time lol.  I know we had sex a few days before my period..and then I got my period...and then I had started my Bc two weeks after my period..and we had sex in those two weeks I was not on pill. All unprotected.  Do you think I got pregnant before my period? Or during the two weeks I was off the pill?