All of my life I have had a very irregular period. Sometimes I will get it every month, sometimes skip a month, sometimes I won't get it for three months! I just got the yasmin birth control pills, but am unsure when to start. I don't know when i'll get my next period, but want to start the pills as soon as possible. Usually you're supposed to start on the first day or your period or the first sunday after you get your period, but this desn't apply to me. Any help would be great!!! Thanks.