There are some really great discussions happening. Though, I am struggling to follow where each person stands, at times.
For clarity sake I tend to avoid the term “sterile” except under the most precise definition. An infertile person can be infertile or sterile. It depends. It is
a contraceptive act that is always sterile, but not necessarily the person.
Another clarifying point:
If the Church at some point in history “cleared NFP for use” (though I don’t believe She ever needed to do so,) it would follow the normal Church practice of clarifying something that has always been part of constant and consistent teaching. I am interested in reading, in context, any document that seems to give the impression that continence during fertility was a new thing.
Finally, the clarifying point that I struggle to explain each time: The term “procreation” has confusingly been used interchangeably with conception, reproduction, and many other terms that mean a baby was actually made. Procreation has always meant “for creating” and “towards creation.” The word is a very precise word. I am very interested in the history of the word, because to use it to mean “conception or reproduction” is imprecise.
Sex makes babies. The *design *is procreation. To *act *on the design is to act procreatively. To say that a couple has sex “for procreation” just doesn’t make sense. That would mean they had sex “for, for creating,” or they had sex “for, towards creation.” Neither makes sense. It appears for centuries, people have been using the term “procreation” as a euphemism for the *actual *conception. “Look, we procreated!” This has been one of my biggest pet peeves when it comes to listening to anyone, even modern theologians, discuss procreation.
As a person who has struggled with infertility, and now being called to a small family even though we are still fertile, it is almost an actual slap in the face to read that those of us in that situation “aren’t being procreative,” or that we are, “purposefully separating the act of sex from procreation.” Infertile couples are some of the most procreative people I know. They are proven infertile, yet they keep having sex!
It could *seem *like procreation has to do entirely with intent. “I hope we make a baby!” has to be replaying in their minds the entire time in order to be so-called “procreative.” Or even that each and every time the couple begins their act, an acknowledgment must be made in hope of conception. That is an impossible idea!
That has never been what the Church has taught. It would defy natural law! It would be forcing the couple to the ridiculousness of deciding that, “We know that at this time we are infertile, but we are going to hope that a baby will be made anyway, despite the natural design.” That is absurd! But homilies over the centuries have led many people to this erroneous conclusion. Those theologians were acting on their own, without papal infallibility. Again, theologians are *not *a mini-magesterium.
What the Church *has *taught for 2000 years, constantly and consistently, is that the
design of sex is so we don’t die out in one generation. As long as that purpose stays intact, then unity and a cure for sin can follow. Some theologians (like St. Augustine) felt that all sex (including “for procreation”) could too easily become lustful. Given the playboy, promiscuous background of St. Augustine, that is not a huge leap. So, we have always been cautioned to keep our desires properly ordered.
Contraception is unique in its attack on the purpose of sex. It says that the *design *is faulty. That is the single point that finally got through to me. The design is perfect, because the Designer is perfect.
Yes, in real life I have been called “Chatty Cathy.”

Thanks for reading!