Predicting Ovulation

How do chloride ion concentrations change as women approach ovulation? Does this effect help in predicting ovulation?

Researchers in the late 50s and early 60s noted that numerous salts (chloride, sodium, potassium) in a woman's sweat fluctuated in relation to the menstrual cycle. Chloride levels are low at the start of the menstrual cycle and peak three times during the cycle. 

The graph below shows what the different hormonal surges are in a woman’s system on the days before she ovulates. This graph depicts a 28-day cycle, however, in any cycle length, the pattern is the same. You will notice that the chloride ion surge happens well in advance of the estrogen and the LH surge. That is how only OV-Watch can give you the entire fertility window, including those 4 crucial days before ovulation, in a wrist-mounted, easy to use device.

Predicting Ovulation with OV Watch

Using a patented biosensor, OV-Watch detects a baseline chloride ion level that is detectable in a women’s perspiration, and then accurately predicts ovulation based on the timing of the first peak that comes approximately 6 days before ovulation. The OV-Watch® is a wristwatch-like device that comprises a timepiece, a biochemical sensor, and an advanced microcomputer. The biochemical sensor measures sweat ion changes on the surface of the skin. The advanced microcomputer and biosensor predicts ovulation and your six days of fertility by monitoring the changes in chloride ions on the surface of your skin. All of these components together allow the OV-Watch® to predict the days when a woman is most likely to get pregnant. The sensor on the underside of the watch makes contact with the skin when you wear the watch on your wrist. The OV-Watch detects the chloride surge 3 days prior to the estrogen surge, 4 days prior to the LH surge and 5 days prior to ovulation, making it an earlier predictor of ovulation than any other chemical surge during the month.

Knowing the 4 days before you ovulate not only reduces your stress level but medical literature supports that having intercourse on the days before ovulation day dramatically increases your odds of getting pregnant. This is due to several factors related to sperm and egg life.

See graph below for your probability of conception on the 4 days prior to ovulation.