Better check history. For as long as people have understood that certain activity causes pregnancy, people have been looking at ways to avoid pregnancy. Contraceptives of one kind or another have been around for thousands of years. IIRC, they were found among King Tut's burial paraphernalia.
But not until very recently was
has there been effective, mass-produce-able B.C. and the will to use it en masse among the populace. Casanova’s “curiously-wrought whale-skin virginity cap” never really caught on. Modern B.C. has, and not at all for the better.
Seems to me that argument would hold more weight if there were at least some Christian groups that officially accepted it a few centuries ago. To my understanding they all seemed to get on board after 1930ish or so which makes me think the ease and quantity of manufacture at least played some part.
Freegards