Hi. I'm 14. I made a HORRIBLE choice and had sex with someone older that me with experience  i got prepared and started taking birth control pills 3 days before we had sex. when we had sex it was the last day or either the day before was when my period was suppose to stop. usually my period is at the beginning of the month, but this time it was at the end. which was October the 3rd was suppose to be the last day, and also when i lost my virginity.  he penetrated me and we didn't use protection. he didn't come inside me and we didn't use protection. he didn't come at all, even though he said he was almost close to coming. the sex was very short. i bleed some. i'm not sure if it was my hymen or my period. i had no kind of symptoms but i'm still a little worried.