Hi I'm 14 years old I first got my period when I was 12. I always start on the first of every month, lasting around 5 days. Last month I started on 1st Nov - 5th Nov however, I missed this month. No I didn't have sex. I haven't been stressed or a change to my daily routine. Also no change to my weight. Also I haven't had an cramps or pains. I went to the doctors 2 weeks ago for a urine test and I wasn't pregnant. The doctor said it was my hormones but they have been normal. I'm thinking to go back to the doctors but I don't know what should I do?