every person on his planet is unique/different. there is absolutely no way for me or any medical provider to determine the reason for your ammenorrhea (lack of a menstrual cycle) blindly over the internet. nothing is known about your medical history or even the type of birth control you are using. there can be numerous reasons. it would be in your best interest to make an appointment with your women's health provider so that this problem can be solved.
i'm 18 sexually active and on birth cntrol. i haven't had my period for a few months. why? . i am fairly healthy and active. i have heard stress may be a factor. and i do not think this is the result of a pregnancy. . is this serious?