Very + opk for several days

Feeling confused. Usually when I get that VERY positive ovu test, it’s my peak and the next day it’s very negative. I got a very positive test on Saturday. And then Sunday. And Monday and yesterday. And this morning, it’s still VERY positive. Has anyone else had this? It started on CD 12, today is CD 17. My period was on the 2nd but only lasted about 24 hours and was mainly spotting, so I waited 6 days and tested hcg and was bfn. Has anyone had this and got a bfp? The only other symptoms I have is being extremely tired and nauseous 🤷🏼‍♀️🤍x

This is this mornings opk from about half an hour ago x