It looked like I was pretty close on cd10, but then it disappeared 😔, Glow says that my fertile window will end on cd15...what do you think?

UPDATE: Went to the Dr. Today and I haven't ovulated, I'm ready though it seems like I will ovulate any moment now, the egg is the right size and the endometrium is the ready as well. I don't know why the tests are not picking it up, today's was soooo negative it only had one line lol, I don't know what I'm sf doing wrong because same thing happened with the clear blue digital, will try in the afternoon next time.