I generally agree that the alternatives to a pregnancy which could well kill the mother are only NFP and abstinence.
However, because the unitive function of heterosexual behavior is a biologically pre-wired function, desired by nature where a couple co-habit, I’m not certain that that function should be kept off the scales as a consideration, also, in deciding the morality of the situation.
Hypothetical: A woman has a womb so afflicted with permanent scarring that the womb will burst and she will die if she gets pregnant.
Let’s say that the risk of pregnancy, because of the same scarring, is about 5% of normal, with normal sexual contact, but the risk of death from pregnancy is 100% unless the fetus is aborted before the end of the second month…
It seems to me that in this hypothetical, having sex, even NFP-protected sex, is implicitly immoral unless the risk of pregnancy is eliminated. In other words, is one morally permitted to knowingly risk one’s life in order to have sex, where the risk of dying from sex is real, not theoretical?
Now, where intentionally rendering the woman completely infertile, thus reducing from 100% to near-0% the risk that having sex will kill the woman, where the loss to nature of doing so is so small (because the risk of pregnancy is only 5% of normal, and the guarantee that the fetus will not survive in any case is 100%), is it moral to opt for abstinence as opposed to contraception, and thus opt for the destruction of the unitive function of sexuality, which is also loved by Nature?
In other words, in the one rare circumstance described in my hypothetical, NOT making use of contraception may be the immoral thing!
I’d be very interested in reading opinions on that, here.
I’d like to see analysis of absolutist prohibitions like, “We are not allowed to ever separate the reproductive function and unitive function of sex.” In other words, I’d like to see an explanation of WHY we are allowed to KILL the unitive function when the price of doing so is killing a mere chance of pregnancy that is 5% of what it normally is, and the possibility that a viable human being can result from the pregnancy is 0%. To put it another way, Does Humanae Vitae itself reckon the unitive function, which Humanae Vitae acknowledges, to be so worthless, that we have favor two months of pregnancy with no chance of viability over letting the unitive function survive? Doing so seems like madness.