So i was on a different birth control for like 5 months, and then this month i decided to change. I started taking it right away. On day five i was very sick so i took a lot of antibiotics and my boyfriend and i had sex. Is there any chance i could be pregnant?? My period isnt late yet. But also we stupidity had unprotected sex but he didnt cum inside me, i get that precum is a thing but still im just wondering...