Eh, there's Wild Flower who seems to be planning such a thing, I believe.
In any case, if you're thinking of such a thing for yourself, I would suggest making talking to a therapist a priority. It's not like there's anything fundamentally wrong with it, but such intentions, especially since you've made a decision to transition, may very well be drawn more by fear than genuine feelings... And that might end up feeling very wrong in the end.
Also, you need to consider the possible issues. I'm not going to define which might be easier, but it's not like that path will be obstacle-free. Knowing how you look (and sound), I think it's likely that you would have trouble being credible as male at some point. And when breasts come in and become obvious, it won't be easy to hide. To live as fully male, I think you might have to find just as many excuses and such as if you transitioned... And if you don't, well, it might be more of an androgynous life, which is fine too, but it's not what you mentioned.
It's only my very own opinion, but if you truly feel female inside, I think it may not be a good idea not to transition fully... Especially at your age. You have a great opportunity for a very nice start in life as a female, don't you? If you decide to take this path and later realise that it's not what you wanted, you might find yourself regretting your choice, when you have entered university and whatnot as male, or you have already started a career or such. Not that the same is impossible with the other path, but having already reflected upon transition, I guess that you already knew that.
That's why I think you should make it extra clear with your therapist. What is making you doubt? What is your gender identity, deep down? What was it that made you decide upon transition in the first place? What changed? What are your fears? What are your goals?
Of course, if you think your gender identity is more androgynous or ambiguous, then it might be a logical course of action. But even then, I would advise to talk to a gender therapist about it, because this is an important decision, too. Seeing as it seems to contradict your previous course of action, I feel that it would do you a great deal of good to deeply investigate the matter.