Help OPK!? 2 positive 1 neg.

Jenna
I have PCOS so I know that it can cause false positives but it's supposed to be consistent false positives. I have been using them for a month and nothing I started taking metformin and now today I got my first bfp opk on 2 test strips it is a clear positive. But I also took a digital and it says no? Could it be wrong what should I go by?!