Bleeding after sex

Obligatory TMI warning.

I’m really only posting this cause my doctor isn’t in on weekends and Google is giving me anxiety lol.

I’m 7 mo PP and finally regaining my sex drive! The past 2 weeks I’ve had sex 3 times and each time I’ve bled heavily afterwards. It is not the same consistency/color as my menstrual cycle and it stops after a few hours. Sex doesn’t hurt at all and I’m not having any other symptoms other than minor cramping. It’s too heavy to be implantation bleeding and I’m negative on 3 pregnancy tests.

Did anyone else experience this pp? Google is telling me it’s an STI or cancer and now I’m freaking myself out 😂