Evidently since my period comes between the acceptable 23-35 days each month it's considered regular even though it can vary! I've been keeping track of my last few periods, 26 days, 23 days, 27 days...today is day 28 (so if I got af it would be 27 day cycle) but I have a bfn on cd 21 and cd 25. I don't want to go crazy testing all the time! What do you girls think