Hi everbody!
I've been on HRT for about 6 months now, and just recently began presenting as female. Back before HRT I passed regularly through male puberty, making me extremely prone to sexual atraction and arousal, and making me wish I could be having sex all the time. However, I always hated it and I felt really unlike myself whenever i'd have a sexual relationship with thought. Now with the decreased libido from HRT I don't have that curse anymore. I never plan nor wish to have sexual intercourse nor attraction with/for anybody. And I feel like that might make me asexual (a group which I've always admired and wanted to be a part of), except for the time of everything before my transition, where I very clearly desplayed sexual interest and desire. If anybody knows anything about this, please let me know. I really don't want to be going around calling myself asexual when I'm actually not.
~ Emily

There's a difference between romantic/physical attraction and being asexual.  During the first couple of months I was on HRT, my libido disappeared, but I was still attracted to people.  I considered myself to be asexual for that brief period at least.  I still haven't had sex or masturbated (okay, I masturbated once) since starting HRT, but I can feel the urges to be physical with someone returning.  I don't know if it's sexual urges, but it's a desire for physical intimacy at least.

I don't know if that helps you at all, but that's my experience so far.