Please help! Bleeding/Positive OPK/Negative HPT

Does anyone have any idea what could be going on with me? I ovulated on January 8th and would have put money on me being pregnant. I had every symptom possible and still have very strong symptoms. I started spotting very lightly on Friday and thought this could be implantation. Had some more spotting but all very brown and very light Saturday and Sunday and got BFN the whole time. I woke up Monday morning with bright red blood so I assumed it was AF. it has been lighter than normal and had a few clots but today is the third day and it’s been almost nonexistent. I also took another pregnancy test and it was negative but for fun, I took an OPK and it came right up very quickly as positive. I do not feel as if I am actually ovulating and have little to no CM.

Has anyone ever experienced this before? What was wrong? I appreciate anyones feedback. I do have a doctor appointment next week but I am going crazy trying to figure out.