Implantation?? Please help!

Cynthia

My husband and I have been trying for our rainbow after a loss at 11 weeks in January)our first) We had a little rough sex last night and I’ve never had bleeding after sex unless I was pregnant. It was very light pink mixed with brown. Almost opaque with just slight coloring. My period is 6 days away and I’m always regular on cycles. Because I know I don’t have an std my question is did anyone else get implantation bleeding 6 days before misses period? Or is this just because of the sex? It wasn’t like he plowed me but he did get a little rough. With my first pregnancy I never had implantation but the ultra sound tech said I might spot because she saw blood left from implantation around the sac. Help!! Too early to test and kind of freaking out.