Like some of y'all mentioned gender, gender identity, sex and sexuality often get conflated, and while they really are four separate things, there is a relationship between them such that you'll often find that if you tug on one, the others move. And they don't always move in ways you would expect.
So, the short version of my answer to this question is, "I don't know, but probably."
Even though I had relationships with women, I'm not sure if I was ever truly physically attracted to them. It was, in fact, my lack of attraction that led to the failure of every relationship I ever had. Yet, I can't say I was attracted to men either back then. I think my issues with my own body made it impossible for me to find the male body attractive. Just an idea, anyway.
As I came to terms with the reality that I am a woman, my sexuality became less and less ambiguous. Right away I realized I was NOT attracted to women in the least, and I started finding guys cuter and cuter- a trend which accelerated
like crazy once I got on HRT.
Nowadays I wouldn't call myself boy-crazy, lol, but hell, maybe I am

.
I feel that before we come to accept and understand ourselves we can have so many psychological roadblocks in our minds obfuscating the truth, that, post-transition, we find that when we look back we can't even recognize the person we once thought we were.
Was that really me? Did I really used to think like that? No... couldn't be.