Fr. Serpa’s answer was entirely accurate and consistent with Church teaching on the topic.
Regarding the Pill’s or any treatment that might cause a miscarriage as a secondary effect, this too could be permissable in a proportionate circumstance.
I strongly disagree w/ this statement. The pill (or any birth control) does not cause ‘unintended’ miscarriages IMO. The effect of inhibiting implantation is designed into the drug - that’s intentional! Especially when most frequently the drug is used for that purpose - preventing pregnancy!
I’ve had 4 unintended miscarriages through no fault of my own (except perhaps for the way God made me & that technology hasn’t caught up with His design). To equate my unintented miscarriages to someone who takes a drug (birth control) that is labeled as inhibiting implantation (on the package inserts - usually in the physician’s information) is a disservice to me and my lost children. IMO that cheapens the suffering that I went through during my unintended miscarriages. I
did not make a choice that resulted in the loss of my children. I
did not have that ‘luxury’. There are other options available that do not have a side effect (one of the primary effects of birth control) of destroying a baby. One such option is to take the drug, but abstain from marital relations while on the drug. If people did that, I’m sure there’d be more pressure on them (and drug companies/doctors) to find alternative treatments. However, taking birth control then knowingly having marital relations is the easy way out with this line of reasoning.
Now, would “acne” or “cramps” or “irregular period” be a proportionate reason for a treatment that in theory could cause miscarriage but is not known to do so with certainty (i.e. potential abortifacient properties of the Pill)? Moral theologians are split on this.
This section is why I was in doubt of Fr. Serpa’s answer. I see many examples (on CAF as well as in real life) of women using this type of reasoning to excuse their use of birth control when the real issues at hand aren’t truly ‘life or death’ like the possibility of killing the baby w/ birth control. For instance, one woman I know uses this reasoning to prevent heavy bleeding
during pregnancy. She has somewhat heavy bleeding during her cycle as well, but the real danger comes from being pregnant. She comforts herself with the ‘double effect’ that she’s not intentionally harming her unborn children by using birth control. However, since the intent and/or true danger comes from pregnancy - double effect does not really hold water in this instance. Another woman I know uses this reasoning b/c her kidneys cannot sustain both her and a growing baby. She is also generally anemic, so she has birth control to control her periods. She comforts herself w/ the double effect as well. However, is that truly a proportionate reason? Again, I side w/ the apologists & moral theologians that err on the side of life and say “No”.
So on the whole, I agree that the simple statement that birth control is allowable for medical treatment. However, it needs to be explained more clearly and other options must be explored. Also, it needs to be explained/explored as to the morality of having marital relations while taking birth control. My doubt is that it is moral to continue having relations while taking birth control, not simply b/c of the effect of inhibiting implantation, but also for the other reasons birth control is disallowed by the Church. Fundamentally, birth control - whatever its prescribed use - is going to remove one or both of the required aspects of Catholic marital relations - procreation and unity. This removal of the required aspects of Catholic marital relations precludes this act or taking these drugs.
For what its worth, here are some examples of why I feel the way I do about abstaining from relations while taking such a drug…
BC for Rheumatoid arthritis?
Birth control for extreme reasons
Birth control for medical reasons
Double effect and contraception/NFP
Birth control/map
Many/most of these have been answered by a solidly Catholic pro-life ob/gyn with 35+ years experience. If he’s aware of alternatives (to birth control) and advocates them and/or abstinence if there is no other option, then
all good ob/gyn’s/Catholics should be aware & open to these options.