How do you know you've hit that age when your body is starting to change? Do you know if you have hit puberty yet? What actually is puberty? So you're starting to get hair in weird places, and that cute girl at school is starting to make you feel very uncomfortable in one of those same weird places. No need to freak out- you're just going through puberty. But what exactly happens to your body as you enter this troublesome stage of development, and how can you be sure you're finally entering pube