I'm listed as a man even when I corrected it to female.
You are supposed to be able to change your Gender for a Period up to 14 Days per the Link Moderator late™ posted above.
However some People have had Problems doing so and ended up deleting their Profile.
Although the Edit Registration Page states:
|"You can change your birthday and gender within 2 weeks of signing up."|
... another Admin Reference states it has been disabled as follows:
|In View of the Fact I don't know which Reference is more current or correct, I suggest first trying to change your Registration Infos, and failing that, delete your Profile and make another one.|