I don't know if I'm posting this in the right category, but I thought I'd give it a try. I am 27 years old, and for nearly a year now, my period has been almost non-existent. It started last summer, and I realized that I'd gone a couple of months without my menstrual cycle. I've never really kept very good track of that, and so I started paying closer attention. Once I started documenting any activity, I noticed that usually around the first of most months, I would have extremely light periods for 2-4 days, when, since my first period, I've been very regular, with periods always lasting from 6-8 days. What could be the cause of this? Some months I go without a period entirely, and when I do have one, it's ridiculously light. I thought it could be pcos. Does that sound reasonable?