Yep, this. It's the cycle day, starting with the first day of your period being day 1 (CD1). It just gets a bit confusing when different FS have different cut offs for what they consider day 1 - eg, I've seen 3 different FS over the years and FS#1 considered it CD1 if AF started before 4pm (the time his office closed), FS#2 required AF to start before 10am and FS#3 only counted it as CD1 if you woke up with AF... If you know what day you're up to, I can update your entry in the list.Good luck!



Good luck!





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