Hi. Umm, I'm 18 and very stressed. So the last time I had sex was in February. I started taking roaccutane once more for my acne but stopped two weeks into march when I realized its making me lose weight and I missed my Feb period. I didn't worry for the pill does mess up your cycle. However, I missed it again in March. I have also been spotting every day for the past two months. I decided to take a home pregnancy test and one at the clinic a week after the other but they came out negative. Now three weeks ago my spotting went from light to heavy. I use a pad everyday and have some large clots that come out. My appointment is next week with my gynecologist but could someone possibly let me know what could be wrong as I'm getting worse?