Your body is beautiful as it is, it may not be the same as other people's, but that doesn't mean it's "ugly", it's different, and that's what society has to understand, to learn that we're not all the same.
Do not let anyone change you, they should change their twisted minds, and if you want to change the way you came to the world, is decision yours and nobody else, just for the simple fact that it is your body and you can do whatever you want with it.