There's 100% NO chance I'm pregnant. Whatsoever. The last time I had my period was October, which is EXTREMELY abnormal for me. I struggled with anorexia a few years ago, and even in the depths of my disorder my period was never absent like this. Im constantly moody, and it's starting to interfere with my regular life. I'm almost 17 years old, 5'3" and about 100 pounds. I have no idea what's wrong with me.