One of the things that I don't understand in this thread is, I'm seeing a lot of angst happen because people don't always *guess* your gender correctly; why not simply correct them if they're making honest mistakes? I saw a couple of other posts in this thread suggesting the same thing. I can think of plenty of cisgendered guys who've been mistaken for girls, too, due to something arbitrary.
I used to get both 'he'd' and 'she'd' a lot when I was younger, and there was a TON of speculation and gossip about my gender- one day, someone came up to me out of a group of people and said, 'Hey, we've been arguing about it for a while now, but we've finally come to the conclusion you're
probably a girl.' I asked, 'What made you draw that conclusion?' And you know what they said?
'Well. Because your hair is purple? I mean if you were a guy, you'd probably dye it... I don't know... Red or blue or something? So, since it's purple, you're probably a girl.' (LOLwut?)
My ex's name was
Justin, and he was wearing a nametag, with a BEARD at work and got 'miss'd and 'is that a girl or a boy?'d because of shoulder length hair.

There's an attitude here like 'oh no, they called me she, cats out of the bag', that I don't understand. You're not a 'she'. You're not a 'girl'. If it bothers you real bad, say something, and if you like your name, keep it. There's nothing wrong with it.