Results
Does it work?
Our prototype devices have undergone initial tests with a small number of women who experience "ovulation pains", so that we know when they ovulate.
During one test, we have a volunteer use our prototype device as well as two other devices - a commercial store-bought electronic body basal temperature thermometer and computer, and a standard hospital aural thermometer. The woman woke every morning at 6:30am, and recorded both her oral temperature using the commercial BBT device, and the temperature of each ear using the hospital aural thermometer, and noted the days of ovulation pains and of first menstruation. This particular woman had a 24-day long cycle this month - the "average" woman has a 28 day cycle, however this can easily vary from 22 to 30 days depending on the woman and from cycle to cycle.
The expected profile is shown at the top, with the progesterone hormone causing an increase in BBT when ovulation occurs , and a decrease in progesterone causing a drop in BBT the day prior to menstruation. The rise indicates that ovulation has occurred, while the absence fall approximately 14 days later is an indication that pregnancy did not occur. The results clearly demonstrate the superior data collected using our prototype device.
None of the other devices show the distinctive "biphasic" pattern expected for a BBT profile, in all probability because the woman's body was not at basal temperature when she woke most days. This is a well known and frequently observed problem with existing BBT measurement systems, which is completely avoided by using continuous measurement in our devices.
The DuoFertility system aims to make BBT measurement easy, accurate and convenient.