Wondfo vs ClinicalGuard OPK Help!

Andrea

Omg I'm literally so confused...my cycle last month was 37 days then 32 days the month before so I figured I would ovulate around days 14-22 or something this month. So i tested two different kinds of opks this month (last night at cd11 and this morning at cd12) and they are both so different! The left is ClinicalGuard and the right is Wondfo. Can someone tell me if I'm ovulating really early? Are Wondfo usually really dark?