https://www.penguinrandomhouse.com/books/778463/the-fertility-formula-by-natalie-crawford-md/
The Fertility Formula by Natalie Crawford, M.D.: 9780593994306 | PenguinRandomHouse.com: Books
NATIONAL BESTSELLER An indispensable guide to fertility, covering everything you need to know to optimize your hormones, get pregnant, and take charge...