Danse Macabre (Anita Blake Vampire Hunter: Book 14)

These days, Anita Blake is less interested in vampire politics than in an ancient, ordinary dread she shares with women down the ages: she may be pregnant. And, if she is, whether the father is a vampire, a werewolf, or someone else entirely, she knows perfectly well that being a Federal Marshal known for raising the dead, and being a vampire executioner, is no way to bring up a baby.--From publisher description.