Last month I was checking my fertile days consistently trying to see if the two peak days glow was telling me were correct, and they were. My period started right when glow said it would as well. This month I wasn't as concerned with checking my fertile days as much bc it was right on track last month. I decided to take an ovulation test the day that glow was telling me was my highest peak day and it said I wasn't ovulating. Today is when the app said I'm supposed to start my period and I have yet to get it. Do you think I missed my fertile window or do you think it was before I tested? Not going to take a hpt for another few days if it doesn't come.