Danse macabre - Laurell K. Hamilton

It was the middle of November. I was supposed to be out jogging but was at my breakfast table instead, talking about men, sex, werewolves, vampires and that thing that most unmarried but sexually active women fear most... She should be concentrating on a dangerous situation: the ardeur, the sexual power that flows between Anita and Jean-Claude, Master Vampire of the City and Richard, the volatile werewolf who loves her passionately, is reaching new levels, perhaps evolving into something entirely new. It seems to be choosing new lovers for Anita, acting with a will of its own. The unexpected effect of this is that Jean-Claude's own powers as a Master Vampire has grown to new levels - and Richard, always unpredictable, is changing too. However as the days pass Anita finds herself less interested in vampire politics than in an ancient, more 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 full well that being a Federal Marshall, known for raising the dead and executing vampires, is no way to bring up a baby....