Ovulation

Jessica
According to Glow this month, my peak day is CD 11. This seems really early considering it's usually around CD 14 (according to Glow). Has anyone else had it change their ovulation day so many days ahead? 
I had really stringy egg white CM last night but I've had negative OPK so far on CD 7, 8, and 9. I'm really confused with my body right now.