I am 18 and had a period when I was 14 that lasted 3 or 4 days and then never had another. When I was put on birth control I had horrible period but as soon as I quit taking birth control I no longer had periods. Out of curiosity I took a birth control shot that was supposed to last 3 months but almost 2 months after the shot I had a really bad period and then was when I was 16 and now I'm about to be 19 and haven't had anything since. After reading everyone else's post I'm terrified to go to the doctor to find out that I can't have kids when to be honest I want them more than anything in the world. I do have an appointment this month, hope all goes well!