Post partum or implantation bleeding?

Lexi

I'll be 8 weeks pp on the 4th of this month (September)... I stopped bleeding and spotting about 2 weeks ago and started having sex with my husband (with a condom) a week ago and now I'm having brown discharge, enough to use a pantyliner... any chance its implantation bleeding? Its definitely not from my cervix being bruised as it started days after we had sex...