Well…you have to ask yourself my friend. Ask your heart. With watching your cycle to space your pregnancies are you truly being open to life. The answer is no. The truth hurts sometimes.
Would you mind explaining the reasoning underlying your conclusion?
The Church has explained its reasoning relating to NFP versus ABC; the Catechism explains it all fairly clearly.
Called to give life, spouses share in the creative power and fatherhood of God. “Married couples should regard it as their proper mission to transmit human life and to educate their children; they should realize that they are thereby cooperating with the love of God the Creator and are, in a certain sense, its interpreters. They will fulfill this duty with a sense of human and Christian responsibility.”
2368 A particular aspect of this responsibility concerns the regulation of procreation. For just reasons, spouses may wish to space the births of their children. It is their duty to make certain that their desire is not motivated by selfishness but is in conformity with the generosity appropriate to responsible parenthood. Moreover, they should conform their behavior to the objective criteria of morality:
When it is a question of harmonizing married love with the responsible transmission of life, the morality of the behavior does not depend on sincere intention and evaluation of motives alone; but it must be determined by objective criteria, criteria drawn from the nature of the person and his acts criteria that respect the total meaning of mutual self-giving and human procreation in the context of true love; this is possible only if the virtue of married chastity is practiced with sincerity of heart.
2369 “By safeguarding both these essential aspects, the unitive and the procreative, the conjugal act preserves in its fullness the sense of true mutual love and its orientation toward man’s exalted vocation to parenthood.”
2370 Periodic continence, that is, the methods of birth regulation based on self-observation and the use of infertile periods, is in conformity with the objective criteria of morality. These methods respect the bodies of the spouses, encourage tenderness between them, and favor the education of an authentic freedom. In contrast, “every action which, whether in anticipation of the conjugal act, or in its accomplishment, or in the development of its natural consequences, proposes, whether as an end or as a means, to render procreation impossible” is intrinsically evil:
Thus the innate language that expresses the total reciprocal self-giving of husband and wife is overlaid, through contraception, by an objectively contradictory language, namely, that of not giving oneself totally to the other. This leads not only to a positive refusal to be open to life but also to a falsification of the inner truth of conjugal love, which is called upon to give itself in personal totality. . . . The difference, both anthropological and moral, between contraception and recourse to the rhythm of the cycle . . . involves in the final analysis two irreconcilable concepts of the human person and of human sexuality.
Catechism of the Catholic Church ¶¶ 2367-70.
All I’ve been able to tell from your argument is (to paraphrase): “We have to be open to life, and NFP violates that principle; ergo, NFP is sinful.”
But, if that’s true, then married couples actually have a
duty to have sex in the middle of the wife’s cycle every single month, right?
There has to be more to your argument than simply “It’s a sin not to be open to life.” For starters, I assume that you acknowledge the sinfulness of extramarital sex, even though abstention from sex until marriage is obviously not “open to life.” I also assume that you’re fine with using NFP to plan a child (that is, being sure to have relations during the wife’s fertile period to maximize the chances of having a child).
In short, you can’t possibly be arguing (I believe) that the requirement of “openness to life” requires impregnation under all circumstances. So, are there other criteria? Can the couple abstain when one of them is ill? Can they abstain until menopause if the doctor tells them that another pregnancy will kill the mother? If the ovulation test tells them that tonight’s the night but they had a huge argument and really need a little time apart to cool down, do they have to have sex anyway?
What are the particulars of your reasoning?
Or does matrimony require sex in the middle of the wife’s cycle without exception, every single month, until they can’t have children anymore?