Responses

You just missed that fact that the author says Hyesung can't get pregnant because he's a recessive omega and then got pregnant and says the percent of the baby being healthy is low but the baby was really healthy. The author just change her theory. You can't rule out that beta x alpha cant be together or conceive a child together.
Holy shit, hot damn! Its possible for this couple Dojun x Heesoo to marry and have a child. Nothing is impossible. Just look at miyauchi and Jirou from Kashikomarimashita, Destiny. They are beta x alpha and still conceive a kid. They just defy the whole omegaverse.