Ease my mind?

Hi! During my fertile week I had sex. Dumb I know. He didn’t cum at all (maybe precum?) and afterwards we checked the condom with water and blew it up like a balloon. Usually before my period my boobs start to hurt. I start in 3 days and there’s no pain. I’ve been trying not to stress, and tbh idk if I even should be stressing because typing this out I sound dumb even to myself.😂 Don’t be rude. What do you think?