Positive test but bleeding?

I am so confused. Last night before bed, around midnight, I went to the bathroom and when I wiped there was some blood. It wasn’t a ton but enough to think my period started. I thought this was weird because if I got my period that would mean I ovulated super early which I never do, and according to my OPKs Etc. I shouldn’t have gotten my period until at least the 9th or 10th. I wore a pad to bed and this morning there was nothing on it but to be safe I wore a tampon to work. When I changed it this afternoon there was blood on it but only dark brown. Still seemed to line up with the start of my period. There was nothing at all this evening so just for the hell of it, thinking maybe it was implantation bleeding, I took a cheapie easy at home pregnancy test and saw a very faint line. I had a FRER in my drawer and tried that and it’s a clear positive. I have no idea what’s going on. I had a chemical back in April and am afraid it’s happening again. My bbt also dropped this morning although my tracking has been fairly all over the place.