So I had anal sex on the 16th of April is there any way it could have ran down and gotten me pregnant. Also I had started off without a condom on yesterday but out one on to finish but he pulled out before he came. I'm on a low dose of birth control but I don't seem to take it the same time everyday and some night I forget but I just take it in the mornings. I was supposed to start my period today but haven't yet and last month I was 5 days early.