God is all-powerful, He does not follow the logic of man. He can make a woman be pregnant with a male baby. Jesus can make a few pieces of bread and fish feed hundreds. And since Jesus has the powers of God, God can make bread and fish feed hundreds. There is no logical way to explain that. You can't explain God separating a sea with logic. You can't explain Jesus healing a blind man with logic. That's because it is based off of faith, not logic. If God can flood the entire Earth. He can make a virgin woman give birth to a male man.