Um because CD means Cycle day...and the start of AF is your first cycle day and it counts the days until your next AF..meaning if you have a 28 day cycle, it starts the day your period starts and keeps on going till you O and then keeps on going until A) you get a BFP or you get your lovely AF. then it all starts over again.
Look on the pink days of my last AF... I just noticed it ans don't know why it is doing this. When I click on those later days of my last AF, the cycle start date is different then the first to days of the cycle. grrrr!
Re: FF ?? why CD numbering is weird during AF days?
***BFP 1-22-13, baby boy dx with Trisomy 13 at 15 weeks.
We let him go to Heaven on 4-27-13 at 17 weeks 1 day***