Positive OPK CD12 and 15DPO

Chelsea

I used clearblue digital (notnadvanced). I’m one day late for my period. Any thoughts as to why this happened? I’ve taken numerous FRER, wandfo cheapies and 88cent Walmart brands- all negative. I’ve had EWCM on my first positive OPK and my second one as well - although it was more abundant on my first positive OPK. What’s the deal? Anyone in the same boat with any insight? Thanks in advance!