Ok, So i am two months late for my period, and have all negatives on pregnancy tests. I am on the nuva ring. I have lost my appetite nearly completely and am starting to lose weight. I lost four pounds this week. I am a little nauseated at times. I did have some bleeding I noticed when i took out my nuva ring for this month but it was only like a drop. I don't think I am pregnant because I was so sick and dizzy and had headaches when I was pregnant before. What else could this be?