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138. Rethinking Birth Control: Understanding Your Cycle, Fertility & Hormonal Transitions with Natural Cycles Co-Founder Dr. Elina Berglund

October 20, 2026 · 48 min

Show notes

In today's episode, Elizabeth sits down with Dr. Elina Berglund, co-founder of Natural Cycles and a former particle physicist. Elina shares how her own search for hormone-free birth control led her to create the Natural Cycles algorithm. She explains how basal body temperature works and what sets an FDA-cleared app apart from a period tracker. They also get into using Natural Cycles to conceive, plus the newer modes for postpartum and perimenopause. Elina closes with how she stays well while running a company with her husband.


If you want to go DEEPER with me, my Substack is where I share even more behind-the-scenes, personal reflections, and wellness experiments, with new posts dropping every Thursday: https://substack.com/@thewellnessprocess


Follow Natural Cycles: Website: https://www.naturalcycles.com

Listener discount: use code WELLNESS for 10% off the annual subscription, including a free band


Natural Cycles is for 18+ and does not protect against STIs. Always read and follow the instructions for use.


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Produced by Dear Media

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