I got my period when I was 13 years old. During the time I was in cheerleading. My period was never monthly regular, but I did get it every other month or so. Now I'm 16 and I haven't had my period since May of last year (nine months ago). The last time i had my period I was still in cheerleading. It has almost been a year and i was wondering if there is something wrong with me? Also, I have not been sexually active, so I know I am not pregnant. Could this affect me having kids?