PMS: Why are woman cycles like?

I'm just curious to know why women cycles are impossible to tell apart if they are around each other?
Answers:

Suitable moisturiser for an."odd" location?

pheremones, you dont smell them consciously but your lower brain smells them and go into herd instincts, adjectives the cows ovulate at once. such is life.

Birth Control or no birth control continued?

I enjoy no idea.hehe. I didn't even know around that. Sorry :P

What's wrong with my ovaries?

b cuz thats go its always be like that. of late deal w it. general public dont want to understand

What cause a woman to have a sizeable labia?

I have no view why this happens, but i would LOVE to know.. my best friend have officially screwed up my time even while im on birth control to regulate it. She moved in near my fiance and i for a few months and since then i've be two weeks earlier next that 4 days youre supposed to get your length when on the pack. The same thing happen in highschool next to another one of my good friends, we have classes together and spent every weekend together and she messed up my cycle while i was on birth control as all right!! I would like to know why I'm the one who's cycle is varying when I'm the one on a pill to regulate my cycle haha.