I need advice ASAP!

Halle
So, I just got off my period yesterday  but i was still kind of spotting. Well last night I had sex with a condom (multiple times haha) and I forgot to pee afterwards. And today while I was peeing it started to burn really bad and then some blood came out. I also starting getting nauseous but I think I was just overthinking. What do you guys think? Is it unnatural? I've heard from a couple of friends that I might have a UTI from not peeing afterward.😩 
Update: It's been two days and it's still painful and blood is still coming out. My friend said that he might have hurt me because the sex was rough but I don't know. I seriously need advice.😭