Unprotected sex after taking generic plan- B

Any one know if emergency contraceptives still work if you take them before sex? We had a condom issue Friday night (it got stuck inside me post-ejaculation. I took the morning after pill at about 3:30pm. We ending up having sex again about 2-3 hours later - without a condom - and he finished inside of me. At the time, it seemed like NBD but now I’m worried. He’s assured me I’ll be fine; I’ve also done this once before with actual Plan B, not with this generic type called Aftera.

I’m just afraid about slamming my body with more hormones. Even more afraid of an accidental pregnancy. Not even thinking about the STD riskkk... fuuuuuuck me. Lol our first date was Friday 😭 #HoAsFuck