OPK Test

I use the Clearblue Advanced digital ovulation test. Tested yesterday and got a blinking smiley face which at that point I was only on day 3 of my fertile window according to this app and by the directions means high fertility and then tested today and got a non blinking smiley face which means peak of fertility. So I’m confused as to if I’m really at my peak or it’s a misread by the rest. My ovulation day isn’t supposed to be until this Sunday according to my glow app. I’m hoping it’s a correct reading!!!

Any suggestions?!?