CD11 & CD12- Positive OPKS?! I'm SO confused.

Okay, so my hubby and I have been TTC off and on for the past 2 years and seriously trying for the past 7 months. I've been using the CVS opk's and getting what I "thought" we're positives. I usually try and confirm with clear blue digital... I told myself I wasn't even going to test this month and not stress about it, but yesterday I had EWCM? Usually way too early in my cycle for that. I don't know.. Have I been missing my window completely?  Usually I can confirm what I think is positive with digitals around CD 18&19, but now I'm just confused. (I'm out of digitals and since I told my husband I wasn't going to test this time and see what happens, I can't just go spend $60 at Walgreens without him asking why lol)