OPK clear blue VS Wondfo

Monica • I`m a 30 year old military wife and mother to our 9 year old son, Rylan and daughter, Maci who is 4.
So I've always use wondfo OPK's and never ha a problem. I've always got about two days of positives with those. This cycle I decided to also try clear blue digital OPK. And when I tested the day before yesterday, it was just a circle, so no peak. The. Yesterday it was a solid smiley, meaning that and today are my peak days. However, my wondfos are showing up negative plus I don't have my usual O cramps. I'm just confused on wether or not I'll be Oing soon or if I should sick to my wondfos?