You've still got some growing to do, so don't worry about not being big enough yet. Everyone grows at a different rate, ie some grow fast others grow slower. My grandfather was short in highschool, but had a growth spurt when he started college. Just give your body some time to grow. You'll grow in to the beautiful young woman you're supposed to be, in your own time.
There are growth hormones out there, but I wouldn't reccommend it because you're still so young. There's no magic pill to grow to the exact size you want to be. If there was, I'd take one to be just slightly taller. If, when you are done growing and are still not happy with the body you have, then you could go look into growth hormones or possible surgeries.
I know this probably was not what you were looking for, but I hope it helps, atleast a little bit. Be proud of who you are.