There is a book called Moral Monopoly (sounds like a very boring game played on rainy holidays, but it isn't) which is about the influence of the church on Irish society, and vice versa. It's ages since I read it, but one of the things I took away from it (or made up, who knows) is that the economic conditions in 20C Ireland influenced how Catholicism was inflected as much as anything else.
Eg: you had a largely agricultural economy based on small-ish packets of land; the longer you could delay marriage of young people (and the more strictly extra-marital sex was forbidden), the longer you put off the problem of the livelihoods of the next generation; so socialising was very much in separate sex groups, no such thing as dating, marriages were effectively arranged, and only when there was a way to see how the family could be supported (that is, only when you have a failing senior generation do you allow the men of the next generation to be fully adult, marry, and reproduce, take on the farm, and move in the new farmer's wife to work and produce the next generation)
(as opposed to the US social model in which they had a huge country to populate, having killed off the indiginous occupants of course, so dating was heavily promoted as 16 year olds holding hands leads quickly to 20 year olds getting married and making babies... or 17 year olds making babies and getting married)
Anyway this provides a useful context in which to understand why the Irish version of Catholicism hates sex SO MUCH, and by extension women; but it doesn't answer the question as to why contraception was so extremely unthinkable as a solution to the economic problem of the next generation. The emphasis on forced annual childbirth, for ever, makes no economic sense and makes me think.... they just hate us (us being women). It's the other way around
God I am lucky to live in 21C England. Well done my Grandma who ran away to university in London in 1920-something