I guess since your 13, you will continue to grow taller, Though you might gain little weight as you grow them extra bone and mussels (had your growth spirt?). teenage Females are soppose to be a bit stuby when they are young and their body normaly ends up shaping as you grow older, the oposite happens to boys. I bet if you just excersised and go on healthy diet youll end up losing weight as time passess by.