TMI bleeding after sex

So the last time I had sex was July 1st, and July 7th. I had my period July 20-25 fairly heavy with lots of clotting. Tonight I was using my toys (something that happens regularly) when I was done I noticed blood. I went to the bathroom and there was bright red blood with one small clot. What the heck. I just got off my period 2 weeks ago. This has never happened. Any suggestions?