it all depend on the author really. And what type of omegaverse they've chosen to create.
Only the recessive alpha type not the dominant alpha as you can see Byul alpha grandmother and alpha grandfather in this story. Beta are just like us in real world so male beta can't get pregnant b/c they don't have reproduction organism.
I thought Byul grandma is an omega.
Fargo has mentioned a few times in her twitter that alphas and (male) betas cant get pregnant, Dojin's mom is an omega
Ooooh! Thanks for sharing. <3
She is an omega. And a male omega at that
Just a thought but can’t alphas get pregnant? So there is still hope for a baby