help me i'm so scared any response helps

okay so i'm going through a pregnancy scare and i need some reassurance or opinions or something. okay so i started birth control pills and i took them for a week straight at the exact same time and it said they would be effective after seven days. so my and my boyfriend started having sex. but during the second week i started bleeding a lot at first it was spotting for a few days then i ended up needing a tampon one of the days. i took the pills for another week and they started messing with my depression so i just stopped in the middle of the pack. my boyfriend never came inside me and he peed before we had sex every time but now my period is 13 days late. i'm really scared that i'm pregnant. i know he never got any sperm inside me but i do know that it is possible to get pregnant from precum. so do you think my period could be late from takin the birth control? i plan on getting a pregnancy test it's just kinda hard right now