Period ended two days ago, burning sex last night, blood now

Is this normal? I read that sex after your period ends can be unpleasant... it was super unpleasant this time and now the morning after i see blood. My period is dark brown/black when its ending though, so seeing red made me think it was not leftover period and maybe something else. As a side note, I do have cysts on my ovaries.

2 hrs later, clean liner but blood on tissue