Implantation bleeding?

Chelsea

I’m anywhere between 6-9dpo. I never confirmed ovulation with anything other than strips but I had a gradual rise leading up to 3 days where the tests were obviously peak. Tonight I had pink cm. This did occur after having sex from behind (sorry for tmi) so it could just be that, but hasn’t ever happened before besides maybe once or twice. It’s hard to see but the toilet paper was tinged twice with the lightest pink discharge ive ever had. I also had a tinge of light pink in my CM in the toilet after I peed. Now very very mild cramping.