Here is an interesting tidbit…a statement of Cardinal Ottaviani (of “The Ottaviani Intervention” fame):
“Cardinal Ottaviani spoke on the following day. ‘I am not pleased,’ he said, ‘with the statement in the text that married couples may determine the number of children they are to have. Never has this been heard of in the Church.’ He was the eleventh son in a family of twelve children, he said. ‘My father was a laborer, and the fear of having many children never entered my parents’ minds, because they trusted in providence.’” (Fr. Ralph M. Wiltgen, S.V.D., The Rhine flows into the Tiber- A History of Vatican II. Tan Books, 1985, p. 269.)
Never heard of before.
THE PRIMARY PURPOSE OF THE CONJUGAL ACT IS PROCREATION; NFP SUBORDINATES THIS PRIMARY PURPOSE TO THE SECONDARY PURPOSES OF MUTUAL AID, MUTUAL AFFECTION AND THE QUIETING OF CONCUPISENCE.
Are people charting and graphing because they have an overabundance of creative energy to expend? NO, they are doing it to avoid children, and re-order the aims of the conjugal union. They seek to play God.