I was three and a half months pregnant when my partner and I separated, and I suddenly had to rearrange my life around something I'd never anticipated: single parenthood. In operatic moments, I made mental ledgers of all the things I'd likely have to give up as a sole caretaker: my demanding career, my exercise routine, my friends, reading, going out to dinner, going out to movies, going out at all. I was terrified to parent alone.