The Cowboy's Secret Son (The Teagues of Texas #1)
Trish Milburn

Nathan is in shock when Grace comes back to town. Then when he discovers he's the father of her cute little boy a miniature Nathan he's not sure if he should be angry, grateful or both. He decides to go with angry. For a while, at least until he gets the sense that Grace is still hiding something. What's the secret and how can he ever trust the woman who stole his son from him?