I am worried that my penis is not growing. I am almost 16 and I have a girlfriend and I think she wants to have sex soon and I don’t want to disappoint her with my size. My penis has not really grown since child hood. But I have had armpit hair for like two years and hair above my penis for like 1 year and a half. I am starting to develop facial hair right now. My penis is like 1 to two inches when soft and 4 to five inches when hard but the girth has been the same since I was a child. Should I be worried and when will it start growing