Ovulation tests

I'm not sure if I even ovulate. I've been tracking my periods using flo for years now and have been doing ovulation tests the past few days. For 3 days it was getting darker, but not dark enough to signify ovulation. Then today, no second line at all. Am I doing it wrong? I've been having regular periods despite having PCOS, they've been like clockwork. I just don't seem to ovulate (which is why I've been doing the tests) Will put pics in comments