I am afraid that I might be pregnant. I believe my last regular period was October 20th. I take birth control pills so my period is usually like clock work; however, after that period I began to spot lightly about 5 days later. It then went away. I was having feeling sick a lot for about a week, threw up once. Then as I began to change my diet and eat plain things it went away. I was okay for a couple days then began to bleed again. Now the bleeding is heavier and my period wasn't supposed to begin until tomorrow. I haven't had any clots or anything but I am worried about what is going on.