hi.my age is 24,i am married.i had always regular period without any problem,but in this month i mean in july my period missed,i am not pregnant its clear because my husband live in abroad for his work,my height is 5 feet 3 inc and weight is 62,also i am not too much fat or thin,i have no stress, i have not any kind of health diseas , i did not take any kind of medecine before,i am tensed about it,what should i do for this problem???