Oh, aside from my sarcastic suggestion, congratulations to you and Mrs. Wombat. It's really exciting - and girls rule! My oldest is a girl and she is the love of my life.
Names:
E = Emma or Evelyn (Nickname: Eve or Evey)
S = Sadie or Samantha (Nickname: Sam or Sammy) or Shelby or Sophie/Sophia
R = Roxanne (Nickname: Roxy) or Rose
Some Combinations Based on the Above Suggestions:
Emma Roxanne - Emma Sophia - Evelyn Roxanne
Sadie Rose - Samantha Roxanne - Samantha Rose - Sophie Rose - Shelby Roxanne - Sophia Roxanne