Easy@home opk and PCOS??

Hi all, so I’ve had a rough go at this. I haven’t been on any form of birth control for over a year. I got pregnant back in February and had a miscarriage on Valentine’s Day. I’ve tracked my cycles, my cm and temp checked with no success. I had a talk with my doctor about the possibility for PCOS. I didn’t think I could possibly have it since I already have a child, but I seem to be having an issue. My husband also has a child from his previous marriage. We are in our late twenty’s/early thirties so we can’t figure out why we are having such a hard time. I started opks on CD 4 (CD2 was just me trying to get the hang of it). My periods have been irregular so we decided to try this. I’m just not sure what to think of this. Can anyone give me some insight?