‘’The birth of the Savior was as natural as are the births of our children ; it was the result of natural action. He partook of flesh and blood—was begotten of his Father, as we were of our fathers’’ (Journal of Discourses Vol. 8 page 115)
from Brigham Young’s ignorance
Yes, the birth was natural, it happened in a manger, and Mary went through the normal pains labor, most natural. He was begotten by God, because God is His Father, and He is the Son, just as you have a father.