BrianR is your user title. Do you want us to call you Brian, BrianR, or Pamela? Or Pam?
Are you going to change your profile picture and ask for a changed user name?
Well, you can call me Ray, or you can call me Jay.... as long as you don't call me late for supper!

[/obscure joke] Seriously, I will answer to both until I get my official name change sometime next year. Until then, whatever makes you comfortable. I prefer Pamela (or just Pam to my friends) but no pressure. And I wouldn't be even a little upset if UT were to change my user name to Pamela.
Each day, do you dress as a woman? Have you thrown away your men's clothes? I'm curious how it works, this transition. Is it gradual, where you go back and forth between identities as the mood strikes you, or have you said goodbye to Brian and you're now Pam?
I tend to dress male still, partly because clothes cost more for women, it's tougher to find things that fit me (either too tight/small or too large and FORGET shoes!). Also, remember that I live in Redneck, Texas. The land of pick em up trucks, guns and beer. Some people know about me and most have been accepting (surprisingly). Of course, that acceptance only goes so far.
The changes are gradual, I won't sprout boobage overnight (darn!) nor will I suddenly dress in full drag queen mode (ever!) And no, my sexual preference won't change!
The transition is different for each of us. Some just change overnight and others barely change at all. It's mostly a comfort thing. I know of gurls who planned their coming out as if it were a debutante ball, complete with guests, a gown and a buffet, strolled in, made the announcement that they will henceforth be known as XXXXX etc etc. And never look back. Others stay in stealth mode, perhaps in fear for their lives (murder happens) or jobs (it's legal to fire us in 38 states) or other reasons.
I am playing this by ear, adding clothes to my wardrobe as I find them (and like them). There will be many ups and downs on this roller coaster ride and this is only the beginning. Please bear with me.