on the 16th i had sex and we didn't use a condom and im not on birth control but he didnt cum inside me or at all and i know pre cum is a risk but he had gone pee a bunch before so there was no leftovers of any cum. after about a week i think i started ovulating and i had regular ovulation looking discharge for a few days ....what are the chances of me being prgenant? i'm supposed to get my period today but i havemt and i don't have many symptoms of getting it at all