Like most of my colleagues, I intended to have two, maybe three kids. And like them, I thought the Catholic view of sex and contraception was ridiculous. That was about 25 years ago. Since then, I’ve discovered Theology of the Body (TOB) — Pope John Paul II’s biblical analysis of what it means to be human. This radically transformed my view of the body, human sexuality — and in turn, birth control. And now, I don’t think the Catholic view is ridiculous. I think it’s biblical. And though I’m not dogmatic about it, I, like a growing number of evangelicals,...