The Dream Merchant by Linda Mooney

Life hasn’t always been great for Rainn and Gerran, but it couldn’t be much more perfect than it is now. Rainn was happy to move to the remote mountains of Pennsylvania to be with her love, and to satisfy his “other” side. There, they are perfectly content. Only one more thing could make their lives complete.

Gerran is the last of his kind and hopes to create a new life with his human wife. When test after test shows there is no hope, they are both heartbroken. The two are just too different, their systems too incompatible, and there’s no way around it.

Unable to accept why they can’t be given their hearts’ desire, Rainn vows to do whatever it takes to make her husband happy. A deal with an unlikely stranger could be the answer, but it comes with a very steep price.

Is the sacrifice worth the reward? To save his race and bear his child, she will do anything.