Suz
~ I are a Nerd ~
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M&B, Just to clarify, you count your cycle from the day you start your period... That day is CD1. and if you have a 28 day cycle, you would count from CD1 up to CD28 (CD28 being the last day of your cycle) Then your AF would be due on day 29 and once the Witch arrives, you call that CD1