Okay I'm a girl, 20 years of age, its been a month since my last intercourse with my boyfriend. I had a period but now I'm sick at nights. I eat till I'm full but I fill sick afterwords. I can't stand to eat food in the mornings. I'm on the pill and have been for a year and a few months. I want to know am I pregnant or could it be hunger or even could I just be sick?