Hi ladies. I'm Allison and I'm 20 years old. I have been taking birth control for about four years now, and I've plenty read of information on how it does not affect pregnancy. When I first started getting my period around 12 or 13, it was extremely irregular until when I started birth control at 16. I would get my period a couple times a year, i'd say at the most 6 times a year. When I ran cross country at 15, I didn't have a period for almost a year until I started birth control. So really, I have no clue what my period is like off birth control now that I'm a bit older. Should I be worried about infertility in the future?