A couple of years ago I was told I was borderline PCO (but not PCOS), my day 2-3 and day 21 were all borderline too. My cycle length (32-34) varies so it was tricky to get say 21 on the correct day. However for a few months I've been doing Opks from cd17-23 and pretty much always get a strong positive for two days around cd18/19. I'm well aware that PCOS gives false positives but how likely is it that this happens every month on the correct day? Or would you say that it's likely that I do actually ovulate? Im currently being referred for further tests bit tbh everyone has been a bit shite that I've dealt with so far. So am trying to arm myself with more information. 