Dansce Macabre by Laurell K. Hamilton

Anita Blake, Vampire Hunter, has seen some pretty scary things in her time, but she's never faced anything as frightening as this -- an unplanned pregnancy. She doesn't know who, or what, the father is - werewolf, wereleopard, or vampire. Now is not the best time for Anita to be facing this crisis. A vampire dance troupe is coming to town and Jean-Claude has invited several Masters of the City to the final performance. Anita needs to pull herself together because showing any signs of weakness in front of their "guests" would be a costly mistake.

Another satisfying installment in the series. The possibility of a baby forces Anita to reexamine her relationships with the various men in her life. Mystery fans may be disappointed that there's no case to be solved, but readers who enjoy the characters, the romance, and the sex will be pleased.