Since grade 6 i have had my period. it became a regular period that lasted 3-4 days and was only once every 2 months. i am now 15 and havent had my period for 7 months. I am not pregnant for i am still a virgin. my mother tells me to just be happy i dont have to worry about it. but i cant help but worry about it. has this happend to anyone? and if so what did you do , and what happend?