Hope theres mpreg

There will be in the future. They can have kids through SCIENCE, but this isn't omegaverse, so knotting won't cause pregnancy in a male.

Thru science??

Yeah, some medical treatment that allows for male pregnancy. They both test for it, but the puppy's more compatible for childbirth. They have twins, a boy and a girl. The boy's emotional, like his father, and wants to a future watcher. The girl's straightforward and assertive. She could easily be a future leader.