period.

alright, so .. this is my first time posting on this, eveerrr, but I am just curious if you guys know why, but .. why is my period starting in less than three weeks apart? I thought periods started in four weeks or 28 days from each other. mine have been starting three weeks , tops. I feel like I just got off mine & am of sudden I'm back on it, like what on earth. I so hate periods. I posted a picture so you can see how it looks.