No, Pregnancy

i think a male beta can still get a female omega pregnant as she still does have female reproductive organs like a beta females except that it's wayyy less likely for a beta male to impregnate the omega female than a beta female. same thing if a beta male were to be with an alpha female

I think a male beta can get a male omega pregnant. But not a male beta
That's my theory

Depending on the story, the alpha, beta, omega dynamic will likely be different based on what the author wants. In this story, the author has already stated that male betas cannot get male omegas pregnant. So, chowon won't be getting pregnant with his beta partner.

But then why suggest a condom then
They should have done it raw
It woukd have been much better

Probably because it's really intimate to have sex without a condom, or perhaps the clean up afterwards. Also, Chowon says something like" Don't forget the condom just because I'm an omega". Meaning just because you can't get me pregnant doesn't mean you don't have to wear a condom.

Yup ....pity though