Clearblue Advanced OPK

Kara • 🎀 2012 - 🎀 2016 - Baby #3 2018 2 Angel Babies
I've been using the Clearblue Advance opk for the past week and have been waiting for my flashy smiley to show high fertility which I always get two days before peak fertility in months past. I never got it and today I got the regular smiley which means peak fertility. I'm just wondering if this has happened to anyone else and if I should take it as my O day?