Phoenix Chosen by Ashe Moon

Tyler Blackwood is definitely not making it to work on time. When he steps into the path of a speeding car, he’s whisked away by a flaming bird to a perilous realm of shapeshifters and magic straight out of ancient myth. He’d always wished for a chance to redo his life—but not like this.
Immediately kidnapped by monsters, Tyler is rescued by Kalistratos, a ruggedly handsome rogue with the power to shift into a phoenix. Sticking by his savior’s side—even if Kalistratos wants nothing to do with him—is the only way he’s going to find a way back home. And it’s the only way he’ll survive when everyone wants to capture him.

Here, he is an omega; valuable, alluring, and capable of bearing children. Tyler knows that’s impossible—how the hell can a man get pregnant? But when his belly mysteriously swells overnight, he realizes his journey down the rabbit hole is just beginning.