⭕️⭕️Bleeding & Idk Why⭕️⭕️

So I started bleeding after sex and I thought maybe just cause of friction or too rough that it caused me to bleed but that was yesterday afternoon and I’m still bleeding and it’s 9:30pm. Is this just weird timing with side effect of my birth control? This is my second month on it ever and I read that my body getting use to it can cause bleeding. But is this bleeding too long and it doesn’t stop, it’s like a light period but my period isn’t for another 16 days. And now I’m scared it’s implantation bleeding because I had sex a week ago. Please lmk if you have any idea what might be going on