French speakers would say "une petite fille" (one does not say "un bébé fille")
"she had her baby last night - a baby girl" = "elle a eu son bébé la nuit dernière - une petite fille"
srpskohrvatski Since the dissolution of Yugoslavia, you wouldn't really talk about Serbo-croatian any more, as Serbian is the language of Serbia and Croatian that of Croatia.