Since the time when I was a girl, the Catholic Church has been encouraging organic means (e.g., "rythym method") to not getting pregnant. Always made perfectly good sense to me.
The U.S. West is predominantly Catholic. And it never ceased to amaze me how many far lefties scorned the Catholic Church.
And the "rhythm method" has been significantly refined. Natural Family Planning (NFP), followed correctly, now successfully prevents conception as well as barrier and chemical methods.