I'm 24 years old and I haven't been on birth control now for over a year ( I was on depo for 2 years for ovarian cysts). My periods have been regular since, but this month I've noticed some weird things. Last weekend I noticed a few streaks of pinkish/brownish discharge, and then nothing. Throughout the week, I experienced episodes of nausea and some weird pains/cramp-like feelings in my lower abdomen (as though it were my uterus cramping). I took 3 pregnancy tests throughout the week, but they all came back negative. Yesterday, I noticed some light bleeding, but now it has gotten even lighter and is pink drops. I used a period calculator, and my period is expected to arrive between yesterday and tomorrow, but I haven't seen anything like my normal period yet! Could I be pregnant? %-)