y partner wasn’t supposed to get pregnant. That’s why she had an IUD —  to prevent the pregnancy we agreed we didn’t want. Liz and I have been together for years, and though we had discussed the idea of having children, we knew we weren’t ready ,  at least not yet. And yet there we were, two New Yorkers in a Utah emergency room, holding a brand-new sonogram printout. Near the top, a nurse had drawn a white arrow pointing to the six-week-old embryo, and labeled it in big block letters: “BABY.” We’d rushed to the hospital earlier that day, knowing...