Responses
Recessive omegas live like betas until something triggers an awakening. So it makes sense he’s fertile until he awakens. It could be that the alpha is his “destined” one and he’s never had awakened without meeting him so he’d have lived his entire life as a beta. There’s a lot of different lore really so depends entirely on the author

Genuinely think the beta is a recessive omega and that’s why the alpha here has been smelling pheromones. I think after prolonged exposure and pheromones showers from our alpha he’s going to awaken as an omega. Tbh it’s not the alphas fault either, he isn’t intentionally exposing him to his pheromones to cause him to awaken. He’s doing it out of instinct to claim him (lol). I also think it’s very very sussy about the ex wife and the omega guy. I dunno….somethings telling me there’s a potential plot point there.