Dragon Heir by Mac Flynn

Rose and William Thorn have returned to his manor for a much-needed vacation from adventure but adventure comes knocking on their door. Literally.

They are visited by three dragon shifters, the members of the council who have heard about their union and are making inquiries. However, Will senses they have an ulterior motive that spells trouble for his mate and him. That trouble involves an old foe who seeks revenge against Will and Rose for their first adventure together.
To complicate matters, Rose discovers she’s pregnant. The rare occurrence draws the keen interest of the council members and lures more trouble to the manor. As the problems mount and Rose’s pregnancy distracts Will, they find themselves trapped in a corner of lies and deceit. They must discover a way out before they lose everything.