There is a hormone-free option for men today https://en.wikipedia.org/wiki/Heat-based_contraception. It's not widely known but has solid science backing it up and even though the wikipedia article claims no long term studies were done, in the 1930s IIRC there was a series of tests done in India and it had men conceive healthy children after a couple of years of using this method. And there have been other long term studies suggesting the same absence of long-term effects if anyone is interested I looked them up a while ago and could go looking for the links.