LH surge and anti-ovulatory

A little frustrated this cycle. I have PCOS and haven't always tracked my cycles. Started tracking a little on this cycle. Had positive OPK on CD18 and sore gums and hight sex drive during fertile week (which I read could be indicators of O'ing, at least an increase of hormones.)Have had mild cramping and I'm on CD 45 with BFN. Really thought I O'd this cycle. Just waiting on AF to arrive so I can start tracking more. Want to track my temps but hard due to irregular sleeping. Thanks for reading my little rant. Good luck to you all.