Wth help please!

Im on day 17 of my cycle been testing 2 times a day every day since day 10 still no ovulation glow and my own calculations say I should have ovulated Sunday and still not even getting a high reading on the clearblue advanced ovulation kit. Im on clomid and metformin and I have always ovulated high on Clomid so idk what's going on. I thought maybe I was pregnant but I took a pregnancy test just to make sure and got a bfn idk what is going on anyone have any insight?