THE CYCLE BOOK

AN INTERACTIVE STEP-BY-STEP GUIDE TO TRACKING HORMONES AND KNOWING YOUR BODY

Take back control of your cycle.
Understand your body - on your terms.

Amazon
Apple Books
Penguin
Indigo
BAM
B + N

The Cycle Book: An Interactive Step-by-Step Guide to Tracking Hormones and Knowing Your Body offers a practical, empowering alternative to conventional cycle tracking.

Created by sex therapist Laura Federico and midwife Morgan Miller, it moves beyond inaccurate apps and disconnected data - helping you build a deeper, more personal understanding of your body.

Through a flexible, journal-led approach, the book guides you to track your hormonal patterns on your terms. You learn how to observe, interpret, and trust your body’s signals over time.

Blending clinical insight with lived experience, The Cycle Book transforms what can feel confusing or unpredictable into something clear, cyclical, and meaningful.

At its core, it’s about reclaiming ownership - understanding your cycle as a way of understanding yourself.

What people are saying

  • Aminatou Sow

    Co-Author of NYT Bestseller Big Friendship: How We Keep Each Other Close

    “There is nothing more radical or powerful than understanding how your body works. The Cycle Book is a highly informative and in-depth guide to deciphering your cycle all the way through perimenopause. Of course, tracking your cycle is not new, but if you’ve felt intimidated by what it is, what it means or how to do it, this is the book for you!”

  • Mackenzie Thomas

    Artist & Writer of I Will Do Whatever I Want

    “Understanding my cycle has always been a lonely struggle. Doctors. Friends. Family. Random people on Reddit. Nobody ever seemed to be able to grasp what wasn’t right with me. The Cycle Book is an overdue miracle. Now, I don't just feel less alone—I finally have the tools to help me make sense of it all.”

  • Erica Chidi

    Educator, Doula, and Author of Nurture

    “This book offers a much-needed systems-thinking approach to menstruation, bridging the gap between oversimplified explanations and detached, esoteric concepts. It provides a framework to reimagine your relationship with your cycle, helping you decompartmentalize how you think about your period and yourself. It's an essential read.”

  • Aviva Romm, MD

    Midwife, and Author of the NYT Bestseller Hormone Intelligence

    “In a time when knowing the terrain of and owning our body sovereignty is more important than ever, this book gives you a key to unlocking and understanding the beautiful mystery of your cycles, a sixth vital sign of our essential health.”

  • Sarah Hill, PhD

    Author of This is Your Brain on Birth Control

    "I loved this book. It provides so much practical wisdom about cycle-tracking and systematically removes the hurdles that can make it feel overwhelming. In addition to giving you all the tools you need to monitor your mental and physical health across the cycle, they give you a language to describe things going on in your body that you might be at a loss for otherwise."

  • Kirkus Reviews

    “An informative reference tool filled with positive messaging. The author’s collaborative effort was inspired by their own frustrations (and those of their patients). Women, they assert, are not given the necessary tools to understand the messages their bodies are sending them. Eight stories based on the experiences of patients treated by the authors illustrate a variety of gynecological issues faced by women…gently leading readers through the daily process of tracking.” Recommendation: Get it