The Monster's Child :.Book 1 in the Delfunie Trilogy.:

Mavis Ericson's world was turned upside down when the creatures, the Delfunie attacked and invaded. Now a year later, she is sold to one and forced to have his child. But when mothers start to die after childbirth, Mavis is suddenly worried she doesn't have much longer to live and with her new violent Delfunie owner making life very difficult she has to fight to survive everything including the birth of her child that she doesn't want.