You're a vampire while he's an alpha with an omega mate already. You and him were at odds with one another  given that you were both respectively vampires and werewolves.

Everything changes when he finds you making love to his mate in their own bed, you cast a spell out of panic to make him fall asleep, but, it was one where you got him pregnant.

"You... what the FUCK!?" Chrysler screamed as his stomach bloated slightly.