I have always had irregular periods, and when I do have sex, we are extremely cautious because I am not on the pill. I have never had unprotected sex. However, after skipping my period last month, I have been experiencing very light spotting that has lasted about a week. It is never very much but I still notice a pink/brown color. I have read that this can be brought on by having irregular periods but I am still concerned. My mom had a tumor on her uterus so I am concerned. It is also worth mentioning that I have been under tremendous stress adjusting to new college classes and this new schedule. What is going on with my body?