Book excerpt: The ultimate science-backed approach to understanding fertility. Leslie Schrock is back after the breakout success of Bumpin’ with the first preconception guide for both male and female fertility. Based on cutting-edge science, Fertility Rules offers a holistic plan for every age and stage of the process, whether you’re planning to conceive or in the throes. Unlike some other fertility books, it also includes practical content tailored to help the mental health of prospective parents. Tackling fertility from multiple angles, from increasing sperm count and reducing exposure to endocrine disrupting chemicals to navigating IVF, and with Schrock’s trademark humor and candor, she leaves you prepared to face the joys and challenges of making a baby—and excited to get started.