Pope Pius XII authoritatively taught that "engaging in sexual intercourse while avoiding the will to fecundity without a sufficiently grave reason is a sin against the very nature of married life." Do you object to the Church's teaching on this issue because it took place before "V2"?
Max, I've continually invited you to allow Pius XII and others to be read based on the interpretation given by the approved Theologians of the Church, in harmony with the pronouncements of his predecessors and sucessors in the Pontificate, rather than attempting to make an interpretation by ourselves.
Your continued promotion of the view that all Catholics are obliged on pain of mortal sin to have as large a family as naturally occurs without ever attempting to limit it in numbers short of extremely severe medical or economic indicators is simply wrong and in total contradiction to the unanimous opinion of Catholic Moralists and the express views of the Holy See in the decisions of the Sacred Penitentiary which began the whole discussion of periodic abstinence in modern times.
You are laying up non-existant burdens upon people. The Sacred Penitentiary in its response of June 16, 1880 said "Married couples who use their marriage rights in the aforesaid manner are not to be disturbed". But you continue to disturb them by accusing them of non-existant sins and making them equivalent to users of artifical contraceptives. Why? Do you really think you have a better grasp on Catholic moral law than the Sacred Penitentiary, and the approved theologians?