There's a really good author on fanfiction.net: vjgm. She has one called Parenting Skills or Parenting 101 (one of those is the Twilight one and the other is a Harry Potter one, I think it's Skills though.) and one called Boycotts and Barflies where everyone is human but it's still a good story and very funny.
There's also My Love by Totally3rdGrade (on fanfiction.net). The story's about Edward and Bella's daughter Evelyn when the Cullen family moves back to Forks.