About 20 years ago, a nutritionist told me that if I didn't change my habits, I'd never be able to have children. Despite zero interest in having children (when I was little, I told my mom I wanted to be a teacher, an artist, and a writer, and wouldn't have time to be a mommy), that nutritionist's words scared me into making some significant changes in my life. Over time, my feelings about children changed from not wanting them to not knowing if I wanted them.