“Optimizing the timing of intercourse can increase a women’s chance to conceive.”

Dr. Diana Mansour, Consultant in Community Gynaecology and Reproductive Healthcare

“Optimizing the timing of intercourse can increase a women’s chance to conceive.”

Dr. Diana Mansour, Consultant in Community Gynaecology and Reproductive Healthcare

  • Skin Temperature

    Decreases by about 0.2°C after menstruation before rising 0.4°C after ovulation, remaining elevated until menstruation begins.

  • Resting Pulse Rate

    Drops by about 1.5 beats during the follicular (pre-ovulation) phase, before increasing through the fertile window and peaking in the luteal (post-ovulation) phase.

  • Heart Rate Variability Ratio

    Typically rises in the follicular phase and falls in the luteal phase. It’s an indicator of physiological stress, with a higher ratio suggesting the body is under greater duress.

  • Perfusion

    Is the passage of blood through the circulatory system. It’s lowest at the start of the fertile window and highest in the luteal phase and during menstruation.

  • Breathing Rate

    Measures lower at the start of the fertile window and higher in the late luteal phase.

Ava bracelet

Who can use Ava?

Ava is right for women whose cycles occur regularly between 24 to 35 days. It has not been tested for fertility detection in women with conditions that interrupt ovulation, such as PCOS or hypothalamic amenorrhea, but these patients may still find Ava useful in tracking their cycles and gaining a better understanding of their bodies.

Ava compared to other methods

Convenient, accurate detection of the fertile window

Ava

Sensor bracelet worn at night​

  • Real-time fertile-day detection: 5.3 days
  • Convenient
  • Menstruation prediction
  • Insight on sleep and stress
  • Mess-free
  • Reusable

LH stick

Urine test taken 5-10 days per cycle

  • Real-time fertile-day detection: 1.8 days
  • Convenient
  • Menstruation prediction
  • Insight on sleep and stress
  • Mess-free
  • Reusable

Temperature method

BBT taken every morning at the same time​

  • Real-time fertile-day detection: Retrospective
  • Convenient
  • Menstruation prediction
  • Insight on sleep and stress
  • Mess-free
  • Reusable

Cycle-tracking apps

First day of menstruation entered into app

  • Real-time fertile-day detection: Prediction
  • Convenient
  • Menstruation prediction
  • Insight on sleep and stress
  • Mess-free
  • Reusable

Cycle report

A year of fertility data at your fingertips

Ava users can generate a PDF of their Cycle Report directly from the product app. This invaluable resource for discussion and insight provides an overview of cycle length, luteal and follicular phase length, ovulation, and menstrual flow for your patients’ last 12 recorded cycles.

Learn more

Research-driven digital health

Our wearable sensor technology is backed by rigorous clinical trials. The results are published in peer-reviewed medical journals and contribute to the scientific body of knowledge around female reproductive health.
Our medical advisory board

Ava collaborates with industry leaders in wearable technology, women’s health, and data science.

Our results

See our clinical research, publications, and presentations.

By continuing to use the site, you agree to the use of cookies. More information Accept

This site is using first and third party cookies to be able to adapt the advertising based on your preferences. If you want to know more or modify your settings, click here. By continuing to use the site, you agree to the use of cookies.