So I have been taking OPKs since September 26th for this round. This is the first time I have used them, but I am trying to pin point ovulation since AF is irregular. None of my tests have seem to be as dark or darker than the test line, but they all have had some sort of line. Also, a couple of days ago I had a eggwhite CM but not a positive OPK. I am just confused. Should I keep testing and see if my peak ovulation is coming? Anyone experience this?