This might just be me speaking from regret, but if you think at any point you'll decide to transition, you might want to consider trying HRT now while you're young. It'll be able to do things to your body that simply won't happen latter on. Mainly I'm think that you might be able to achieve some hip widening at your pelvis at your age. You might not decide to socially transition, but it'll help get your body aligned with a more female structure through your bones that in a few years you'll completely lose the opportunity to accomplish after the pelvic bones finish fusing in a few years. Even if after you decide to still be fluid or even stop transitioning you'll have accomplished something that can only be done at a young age.