It's weird about names "feeling" right or wrong. How could a name I've loved for months or years feel wrong? And another one I almost disregarded feels right? Very odd! But I guess we'll keep them all on the list for now.
I think (and this is totally speculation on my part!) it has to do with the actual child itself, as an individual. Just because you've loved a name doesn't mean that it fits THIS child, and just because you haven't seen or met them yet doesn't mean that you can't feel that discrepancy. I know I've said this to you before, but I'm totally a proponent of having it feel right. Some part of you already knows your child, at least to the extent to which something fits and something else doesn't. I had a whole bunch of names that I loved and were on my "future baby names" list, but when I actually got pregnant and we talked about names, the names that we went with for both sexes (before we found out) were names that neither of us had ever even considered. And when tossing around names that were on that list, I felt, like you, that it just wasn't right. And some of these names I've wanted to use since I was a child myself! But it isn't HER name, so they won't be used on her. That isn't to say that they won't feel right for another child in the future, but not this child.
I really hope that you update us once she's born! =) (and ps- our EDDs are just a couple of days apart!)