Who suffers from PCOS ??

Lately every-time i have sex i start bleeding.. which is very annoying. I’m not sure if it’s because he fingers me before and maybe he’s doing it to rough? Or finger nails to long? Or maybe is it because he’s to big? When i had sex with my ex his junk is smaller so i never bled with him at all. I also suffer from PCOS so I’m not sure if it’s because of that also. This wasn’t happening before & I just became diagnosed this year with it.