OPK HELP!

This is my chart, I’ve been taking them on a hold, and I’m not sure what’s going on. I’m 7mo after getting off BC, my last cycle was semi normal so why are they all about the same? Anyone else experience this? I’ve been trying to temp but don’t get much sleep with my youngest so it hasn’t been reliable with the amount of times I’m waking up at night. We have basically been bd every two days or every other day since coming off of the pill, but we still haven’t had any luck :(