OPK Advice Needed

Ariel • 26 • Married 5/12/17 • DS 8/2/18

Hi everyone! So I am just curious as to when you all start using you OPKs with irregular cycles. I have plenty but don't want to waste them by testing at the completely wrong times. I also take my BBT every morning. I am looking for that spike but know we have a short window at that point. We try to be pretty consistent with our BDing anyways so I guess in the long run it doesn't matter. I am attaching some of my charts so you can take a peek at what I am working with. Thanks!

My predicted ovulation isn't until December.