@Linkat,
My husaband has always gone with his middle name. I mean from birth practically.
It's a good think because his first name is a kind of countrified. His middle name is strong and direct and I think quite handsome.
Ok, then, I see that people can start using another name without having it legally changed. Although if you're committed to the name you probably should.
Which brings me to something I've thinking about.
Waiting until after the baby is born to give it a name that fits.
I just looked it up, and in the U.S. at least laws vary by state, but you can at the least wait 30 days to add a name to the birth certificate.
Why not bring the babe home, and let him/her communicate to you what they should/want be called?
I can well imagine watching your baby girl a few days, and realizing "She a Jane" or "He's really a Tom"
In todays label crazy world, you would be right to be concerned family/friends would converge to "help" you name the baby, as if it would poof disappear if it didn't have a name immediately.
Put out an annoucement after the birth stating you're waiting until the time is right, and that basically, suggestions aren't to be given, or welcome.
Let the baby name itself.
Jeez, I don't even name a pet before I get it. I bring it home, and watch it communicate to me who he is.