A lot of this depends what you think your sexual preference means. It is about the sexual organ or how they look?
I'm attracted to people who look like women, have feminine features, boobs, curvy ass, pretty face, long hair. I don't much care whether they have a cock or a pussy, though I do prefer pussy.
If you think your sexual preference is about the sexual organ, that's fine, but you gotta then ask yourself how you'd feel about having sex with a Trans Man? (someone with female sexual organs but who looks traditionally masculine)