Helppppo

Hey all I had sex today and he wore a condom but he said it didn't break we kept on checking during imtercpurse as well he didn't finish at all but some Precum was there before he put the condom on. Idk if it's possible for me to get pregnant as I am getting paranoid and thinking that maybe Precum went on the condom or could somehow reach my vagina! What are the odds and should I be freaking out or not?