Deep cleansing often if not always throws my cycle around... just think, your body knows better than you do about these things, there was probably a pile of waste which had to be excreted ASAP from your uterus thanks to the detox effects of the LF, and as the other poster said the liver is a powerful hormone regulator.
Personally I experience what you are referring to with Bowel Cleanses
and fasts as well. It can be a drag to get it early, I know!!! But have faith that there's a very good reason for it!!
I have heard some wild stories about the kind of toxic crap that can be stored in that region for years on end!! Be happy about it!!