In puberty, you grow taller and begin to take on a more feminine shape. Until you get used to your new shape and size, you may feel awkward. And naturally, you may gain weight. In fact, many girls are a little larger than boys in the early years of puberty. All girls, as they grow up, develop more body fat. As long as you eat right and exercise,
your weight should stay in a healthy range.
Attribution: Straight Talk Foundation