Implantation bleeding????

This is from a little while ago but last month my fiancé and I had sex with condoms and six days or so later I started spotting and stuff like this came out

I think we could've had sex around my ovulation time but I didn't think of it. This lasted for like three days or so maybe longer and it was different every little while but it was usually just a very ugly brown lmao. Now I'm about four days past my period and there's no sign of it other than some small cramps. I thought this could be old blood but I'm panicking now. I can't take a test yet to see if I'm pregnant but does this look like implantation bleeding?