Cunning500

Hello I'm asking Bl Werewolf authors if you know the name of a specfic book I'm looking for. It's about a alpha rejects his mate because he finds out they are a he and plus size. Even then he would sneak into his house and night and do the deed with him and the erase his memories. One day the mate finds out he is pregnant and runs away to protect his child. Runs into other werewolves and falls for one who lost his mate. Eventually the alpha finds him again and figures out he has a child and wants to get back with his ex mate! Do you happen to know the name or author! I'm desperate!!!