Hormone patterns
FSH, LH, E3G and PdG, and the context that cycle tracking can add to individual measurements.
THE BOOK · ENGLISH KINDLE EDITION
Fertility after 35?
Start with a clearer picture.
A scientist's perspective on hormone patterns, egg-quality biology, and the questions behind your next fertility appointment.
5 Steps to Optimize Your Fertility
With Your Own Eggs at 40+
- Understand hormone patterns across a cycle.
- Explore egg quality and mitochondrial biology.
- Bring your results together into clearer questions.
Kindle edition US$2.99Price checked on Amazon.com, October 14, 2026. Amazon shows the current price and availability.
Explore the book on AmazonView the English edition and read Amazon's available sample before ordering.
WHAT YOU'LL EXPLORE
Five steps.
A more informed conversation.
Egg-quality biology
Cellular energy, oxidative stress, inflammation and the follicular environment.
Mitochondrial energy
The book's exploration of ATP, supplementation and emerging approaches.
Your data, connected
Organizing hormone measurements, laboratory results and ultrasound findings into useful questions.
Understanding options
The paths from trying to conceive to discussing assisted reproduction with a specialist.
THE WOMAN BEHIND THE BOOK
My fertility journey
began at 42.
Alejandra wrote the guide she wished she had when she started: a way to explore the biology, organize scattered information and ask better questions.
A chemical engineer and senior scientist, she brings scientific curiosity and her personal experience to the subject.
Foreword and medical review: Dr. Olga Liliana Umaña, endocrinologist and fertility specialist.
BEFORE YOU BUY
A few helpful answers.
Who is this book for?
The book focuses on fertility after 40. Readers aged 35 and over who want to understand the topics and prepare informed questions may also find its educational framework useful.
What format and language is this edition?
This link opens the English Kindle edition on Amazon.com. Check device compatibility and sample availability on Amazon before buying.
Can I see a sample?
Amazon's listing offers a “Read sample” option where available. Use the purchase link to review the book before ordering.
Does this replace a fertility consultation?
The book is educational and does not replace individual medical care. Alejandra writes as a scientist and author, not a physician. Discuss testing, supplements and treatment decisions with your qualified care team.
PREFER TO START WITH A FREE RESOURCE?
Keep exploring.
Five guides to help organize observations and questions.
Browse the free guides →