The Inner Rhythms Podcast

Episode 57 - The Science of Safe Charting: Fertility Awareness Education with Nat Daudet

• Iris Josephina • Episode 57

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0:00 | 33:05

🐚Topics covered

  • The difference between in-depth fertility charting and basic cycle tracking
  • Why the rhythm method is unreliable and how it differs from evidence-based charting
  • The importance of basal body temperature as a progesterone sign in confirming ovulation
  • Why cervical mucus is equally important as temperature and serves as an "insurance policy"
  • The limitations of fertility apps like Natural Cycles that only use temperature data
  • How fertility awareness methods work for people with irregular cycles
  • Charting during postpartum and post-birth control transitions
  • Building confidence in fertility awareness methods over time
  • Dealing with skepticism from family, friends, and healthcare providers
  • The flexibility to change contraceptive methods if fertility awareness isn't the right fit


About Nat Daudet 

Nat Daudet is a double-certified fertility awareness educator, menstrual cycle coach and the founder of Fertility Awareness Project and Fertility Knowledge Collective. Hundreds of people worldwide have learned to chart their menstrual cycle for birth control with her online course, Cycle Love. Nat brings a science-backed, practical approach to fertility awareness education, helping people understand their fertile windows and use this knowledge to avoid pregnancy effectively and confidently.


Where to find Nat

Website: https://fertilityawarenessproject.ca/

Instagram: @fertilityawarenessproject 

Free resource: FAM Fundamentals video course (available on website)


About the Host

I’m Iris Josephina—functional hormone specialist, orthomolecular hormone coach, and entrepreneur. Through Cycle Seeds and The Inner Rhythms Podcast, I support people in reconnecting with their cyclical nature, deepening body literacy, and reclaiming hormonal harmony from a place of sovereignty and embodied knowledge. Most people know me from Instagram, where I share stories, tools, and inspiration on cyclical living, menstrual cycles, fertility, hormones and more. 


Let’s stay connected:

📸 Instagram: @cycleseeds

📧 Join my newsletter: https://www.cycleseeds.com/

💻 Visit the Cycle Seeds website: https://www.cycleseeds.com/

📝 Check out the blog: https://www.cycleseeds.com/blog

🎓 Holistic Hormone & Cycle Coaching Certification Training: https://www.cycleseeds.com/hhcc-training-2025-selfstudy-vip

📚Join my courses: https://www.cycleseeds.com/courses-masterclasses

📊 Chart Your Cycle Masterclass: https://cycleseeds.plugandpay.nl/checkout/chart-your-cycle-97