UPDATE: I am not bleeding very heavy I can’t afford to go to the doctor. Anyone know what’s going on?

need opinions please!! You can see when I was ovulation that I had sex which was on the second, the very next week on the 9th I also did. Well after we got done having sex I noticed there was some light pink blood. Well it stopped for a day or so but now has been going on for a few days. My period isn’t for another week so it’s not that. Could it be implantation bleeding? I took a pregnancy test but it came back negative. I’ve been told it’s too early to tell. Opinions please I’m freaking out!!!