August 7, 2016 at 9:50 pmVery confused here. I started using opk's this cycle for the first time. The line started to darken Wednesday afternoon/evening and was darkest Thursday all day (tested 3 times a day) but it was gone by Friday afternoon. I never got a true positive though. On my chart it has my likely ovulation day set as Monday but the opk that day was completely white and the temp shift doesn't seem high enough to count as a possible ovulation. I also had a temp dip Thursday (which is when the opk was darkest). Today is CD20 and my temp was 97.9 which is clearly a post ovulatory temp. Can anyone help me make sense of all this? When did I ovulate? or did I at all?