What do I do?

Soooo me and the boy are no longer together and he wants nothing to do with me. But we had latex a little while ago and we barley used condoms because we didn't like them much. The day after, I had cum coming out of me like pee. I don't know if it

Was from me or him. I haven't asked him and I obviously wont My period hasn't been regular. Like it never was since I started. According to even if should be here within the next couple days but I'm worried. I'm too young, a baby will ruin my life right now. I'm not prepared in anyway shape or form. I can't tell my mom because I'm not allowed to date in the first place let alone having sex. She know I'm not a virgin and knows I've had sex with this guy. Advice?