Opk help

Hii!! So I have irregular periods sometimes (most of the time) its35 + days a few times it’s been 28 days , this cycle has been different , I got a positive opk yesterday I tested twice and both times positive , this morning it’s negative opk , not sure if test are defective or my cycle is moving along quicker then usual? Maybe it was a fake positive? Should I keep testing ? Here’s pics of my current opk and my past cycle opks

This the two test I took this am