i m Sylvia. age22.my weight 45kg and height 155cm.i m anemic . my problem is i missed my last menstrual period which happened for first time.i m virgin.usually i ve had my period on due date or 2 or 3 after due date.on the date of period i bleed just like starting which is so little amount.it was like dried blood .but after that i did not have regular flow and bleeding totally stopped.i don t know what happen to me.i m really so worried about this.