Opk please help!!

Ok ladies i had a question this is my first cycle to use clear blue digital ovulation packs and my cycles average 30 days give or take so i started testing at cd 10 it was nothing cd 11 i got a blinky smiley face high fertility and today cd 12 i got a peek fertilty a non blinky smiley face it just stayed there .my question is glow says im not sapposta ovulate for like another week but this says otherwise do u ladies think its to early to ovulate during a 30 day cycle or not im confused.