I Just Had Unprotected Sex 3 Days Ago For The

I just had unprotected sex 3 days ago for the first time. He pulled out and then we started again. We stopped then did it like 2 hrs later and we stopped in between because he wasn't really Horny. We did it again and same thing he didn't pull out. I got super wet and he said it was all me not him but i dont know. I was peeing with some blood inside that whole day. The day after I just had some ink ish blood in my toilet paper. Day 2 I actually bleed like I though it was my period but turns out it wasn't. I was supposed to have already gotten my period when I did it but my period is irregular. What does this mean