Help Shape the Future of Maternal Care

Join the BioBAYB2 Study and help us reduce the uncertainty associated with when labor will start.

Learn About the BioBAYB2 Study

About the Study

What is the BioBAYB2 Study?

BioBAYB2 stands for Biological Rhythms Before & After Your Birth Study. This groundbreaking research study aims to improve the accuracy of predicting when labor will begin.

The 40-week estimated due date is only an average estimate of how long pregnancy might last—it doesn't offer a personalized prediction of when labor will actually begin. Improved and advanced prediction could improve care planning and outcomes for both mothers and babies, especially for issues like preterm birth.

Why Your Participation Matters

  • Help make childbirth safer for the next generation
  • More accurate predictions could mean less anxiety around the unknown
  • Allow families to better plan for parental leave or childcare
  • Improved planning could help people feel more prepared and empowered during their pregnancy journey

Am I Eligible?

  • 18 years or older
  • Pregnant and in first trimester (<13 weeks)
  • English-speaking
  • Meet additional pregnancy/health history criteria

What You'll Do

  • Wear a smart ring daily and sync to smartphone
  • Answer daily phone questionnaires
  • Measure weight and blood pressure at home
  • Optional post-birth interview

Study Compensation

Choose what works best for you

Option 1: Cash

Up to $400

Receive monetary compensation for your participation

Option 2: Keep Devices

Retain all study devices for personal wellness tracking plus receive personalized metrics report

Are you a Midwife, Doula or Birthworker?

Learn how you can partner with us for this study

We are always looking to connect with midwives, doulas, and other birthworkers who share our commitment to reducing maternal health disparities. Your partnership helps us build research that reflects the full spectrum of birth experiences and supports more personalized, equitable care for every family.

Ready to Make a Difference?

Join the BioBAYB2 Study today and help advance maternal health research

Join the Study Now

Questions? Contact Our Study Team

Available Monday - Friday, 9am - 5pm Arizona Time