I am 26 years old and ever since I started my period they have been irregular. Sometimes I get it monthly and some months not at all. I have seen doctors and once I was even taking birth control pills to regulate my period but it became tiresome to me. I wasn't told that I have any health problems but I am beginning to wonder what the cause of my irregular periods are. Does it mean that I am infertile and will never be able to have children?