Monday Fertility and OTO Fertility Wearable. The Device That Measures What Other Trackers Miss

May 19, 2026
myStoria Partnerships: A new chapter in fertility tracking. Meet OTO Fertility. The wearable measuring what other fertility trackers miss — now part of the myStoria circle.

Fertility tech. And this one comes with a chest strap.

If you've spent any time on a fertility journey, you've probably been handed the same toolkit: a cycle app, ovulation strips, a basal body thermometer, and a polite reminder to "try to relax." We won't pretend that hasn't been frustrating. The tools tell you when you're ovulating. They don't tell you why it's still not happening.

That's exactly the gap our newest partner is built to close.

Meet Monday Fertility and the OTO Fertility Wearable, the world's first stress-focused fertility wearable, and the tool we're most excited to introduce to the MyStoria community.

What the OTO Wearable Actually Is

OTO is a medical-grade chest strap and sensor paired with a companion app. A few times a week, you do a single 3-minute assessment. In those three minutes, the device reads over 50 biomarkers across five body systems; no bloodwork, no urine strips, no waiting on labs.

Then it does something most fertility tools don't: it translates all of that data into a single, plain-English score called your Fertility Index, plus a daily action plan that adapts based on what your body is telling it.

It's not a cycle tracker. It's not a wellness ring. It's a clinical-grade diagnostic device that came out of the IVF clinic and into your living room.

The Big Idea: Stress Is a Fertility Issue

Here's what we love about Monday’s thesis; it puts ...

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About the Author

With a background in nursing and a genuine passion for care, Jessie supports myStoria members as part of the Concierge team.

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Medical app screen showing a timeline of health story points including appointments, test results, nurse check-in, and diagnosis with dates from December 2025 to February 2026.