Anyone have any advice on what counts as cd1? I've read so many conflicting theories! A bit of spotting on Friday. Very light flow yesterday and today (slightly heavier today, but still don't need more than panty liner). Defo not full on period yet. Do I wait till full flow? Or should I count Saturday? So confusing!! Anyone know the consequences of getting the day wrong? I want my fsh as low as possible!! Thanks!!