Originally Posted by
atomic sagebrush
I wouldn't jump straight to the M word. Swaying makes for some weird and short and even anovulatory ones and so it's much more likely that you're having an off cycle from swaying rather than anything more dire or permanent.
(ps perimenopause can go on for years - and it is rare that it goes from 28 days to suddenly 21 days. I'm in perimenopause, whoohoo LOL, and my cycles are still mostly 28 days but some have been 25-26. That's much more common than a sudden and dreamatic shift, and since it happened suddenly, I doubt it is perimenopause)
I would keep doing e4d before and after you think you've Oed. How many calories and how much fat are you eating?