My surge is stagnant?

I assumed I had ovulated between 1/2 and 1/3, but my tests are still positive and now I’m worried that maybe I haven’t ovulated yet and I’ll miss the egg. Me and hubby only bd on the 1st and a few days before that, I’m stuck as to why it won’t become low/negative? Even Premom is starting to say it’s rising back up again. I might sound a little slow but I’m honestly confused. Any help is appreciated ! x