Is it possible to have AF but not ovulate?

J

I had a normal 4-5 day period this month and I keep coming back negative on all my advanced opks.. the more I record on glow that I tested negative the more the app pushes my ovulation/fertility window.. so I've been bding on all the wrong days because glow wants to keep pushing my fertile window I went from today being my ovulation day to it being pushed to the 3rd.. wtf