Fertile week question...

Christine
So im in the last couple days of my fertile week. I thought yesterday was my ovulation day because according to glow it was my highest percentage of getting pregnant. Well today i got an alert saying today is my ovulation day (which would be awesome because we were too tired to dtd yesterday) and on top of all that, ive gt major cramping on my left side (which is the usual side i get them on during af)...so im confused...did i miss my window?