bleeding during/after sex

Me and boyfriend did have unprotected sex I think probably during all of my green days on here and about 6dpo I was kind of cramping on and off for about 2-3 days but around the same time the cramping started we had sex same usual positions and roughness and after there was definitely enough blood to turn the toilet a nice pink but after I wiped it stopped I didn't have spotting or anything. I didn't think anything of it the first time I just figured that time was just rougher on my body for some reason but it happened again yesterday, there wasn't as much blood but now I'm not sure what to do because I don't have insurance. I took a pregnancy test and it came out negative I'm gonna retest in about 5 days cause that should be when I get my period.