8 things you'll experience:
- your breasts and hips will get bigger
- you'll grow taller
- pubic hair will start to grow
- you'll start having periods
- sexual thoughts and feelings
- you might get spots and start to sweat more
- the hair on your legs might get darker and some girls grow hair on their upper lip too
- you might feel more irritable and moody than usual - this is because of changes in your hormones.