Joseph Fielding Smith said this in DS 2:88; “President Brigham Young has this to say about birth control, an abomination practiced by so-called civilized nations, but nations who have forsaken the ways of life: There are multitudes of pure and holy spirits waiting to take tabernacles, now what is our duty? To prepare tabernacles for them; to take a course that will not tend to drive those spirits into the families of the wicked, where they will be trained in wickedness, debauchery, and every species of crime. It is the duty of every righteous man and woman to prepare tabernacles for all the spirits they can.””
John 6:28-29; “Then said they unto him, What shall we do, that we might work the works of God? 29 Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent.”
As Christians we may disagree about birth control but we all know the Mormon teachings on spirits waiting to take bodies is ungodly and not true.