The Pill prevents ovulation. Without ovulation, there is no egg to be fertilized.
This is an extremely important point, and it was the primary focus of Humanae Vitae in 1968.
The Church had previously spoken against any use of artificial birth control whatsoever in the
Encyclical Casti Connubii which was released on Dec 31, 1930. Casti Connubii was a response to the Anglican Church’s teaching in August of that same year that artificial contraception was not always a sin. Paragraph 56 is breathtaking, and definitely worth reading.
What was debated in the years leading up to Hamanae Vitae however, was whether the pill was an unnatural means of controlling birth or whether it was in fact natural. Some argued that ovulation was a natural part of a woman’s complete cycle leading up to conception and birth, and so any man made interferance was unnatural. Other’s argued that sex, conception and implantation were apart from ovulation - that there could be no birth to control without ovulation in the first place, and that ovulation was a seperate matter.
Obviously the Holy Father decided on the former, that the pill was an unnatural regulation of birth. The Holy Father stated that we must look at the whole of man, and cannot look at the individual parts and processes apart from the whole.
It is the whole man and the whole mission to which he is called that must be considered: both its natural, earthly aspects and its supernatural, eternal aspects.
This teaching was later built upon by Blessed Pope John Paul II in his teaching on the Theology of the Body. Humanae Vitae address the pill head on in paragraph 14.
Similarly excluded is any action which either before, at the moment of, or after sexual intercourse, is specifically intended to prevent procreation—whether as an end or as a means.
The key world is
before. You can’t do something now, like take a pill, in order to prevent pregnancy tonight, or tomorrow, or ten years from now. And you can’t seperate ovulation from conception, implantation and birth. All are one process. We have to look at the whole person. Incidntally, the word
after is used as well, which speaks to the issue of the morning after pill.
And the Church was not unreasonable. Christ healed many diseases, and the Church herself undertands her mission to continue Christ’s work, or at a minimum, not stand int its way.
On the other hand, the Church does not consider at all illicit the use of those therapeutic means necessary to cure bodily diseases, even if a foreseeable impediment to procreation should result there from—provided such impediment is not directly intended for any motive whatsoever.
The arguments about ovulation vs implantation and conception vs abortion are false arguments. We must look at the whole human person, created by God, and
the whole mission to which he is called, which includes procreation for the Glory of God.
Such is the wisdom of the Church.
-Tim-