The Catholic Church hasn't changed. It has, does, and always will oppose all abortions, both those done in abortuaries and those done with the Pill and IVF and Patch and the like, and those done in the name of some perceived good (life of the mother, in order to have another child by IVF, etc.)
If there is some disagreement with this position, it is because other pro-life people believe there are exceptions to the Catholic Church's 100% position. It was these very exceptions that Justice Blackmun used to prick the pretensions of the Texas Attorney General in Roe vs. Wade, since Texas had a Rape/Life of the Mother exception to its law that said "Murder is wrong except ..." Since Texas allowed some killings in a limited manner, it was rather illogical of the State to argue that its law was protecting the 14th Amendment rights of persons to Due Process.
Frankly, I don't see the moral difference between 1% exceptions and 100% exceptions to the right to life of unborn children other than a shift in the quantity of killings.
Until the rest of the pro-life folks are willing to eschew these exceptions like Rape and Incest or Life of the Mother and toss the Pill and IVF overboard, no, we are not going to make any progress in advancing the pro-life agenda. Its impossible to craft a rational protection of life which doesn't protect all life.
There is no moral difference between supporting a "Life of the Mother" exception, and supporting "Abortion on Demand". You are still staking out a position in favor of legalized murder or some subset of the human race.
We'll disagree, except on the formularies designed to give hormones in amounts so great that they override the corpus luteum and the progesterone only pills that cause too many ectopic pregnancies.
Blackburn showed many inconsistencies in his logic in R v W. Would he throw out murder charges since Texas makes exceptions for self defense, or has a National Guard for defense and sends tax monies to support National Armed Forces?
You may be mixing the "Life of the Mother" exceptions and "health of the mother" exceptions.