OPK issues

Kaitlyn
On the 6th(cd7) and the 10th(cd11) I got "peak" on the clear blue advanced opk however every other day in between has been "low". Now I realize that both days are a bit early however I seem to be having really irregular AF as of late. 2-3 months will be fine 28-30 day cycles and the boom I'll have a 45 day cycle and then repeat.  Anyone else have similar issues?