Emma is the most popular name in the US right now.. Id just tell her its your choice and youre having a baby first.. who knows she may find something else and Emma may not be what she wants when she has a baby.. or she may have a boy! lol
It's a very, very common name, but I love it- name her what you wish she will forever be your daughter :)
Name your baby what u want your having ur baby first:)