Need some input please ladies! My mind is racing

I had sex on February 23. I’m on birth control but had just recently switched the type and hadn’t been taking it at the same times everyday so we used a condom to be safe. I started my period about 3 and a half weeks ago and am supposed to start it next week again. I’m just nervous because I had a bit to drink when we had sex and I can’t recall if the condom broke or not but i’m pretty sure it didn’t considering I saw it the next morning on the floor and it was full of semen. Anyways about 3 weeks ago as well, I took a pregnancy test and it came back negative. But last week had some weird spotting, and bloating. I don’t know if it because I’ve been stressing out so hard or what? What do you guys think?