How the Saliva Ovulation Predictor Test Works:
Most women ovulate near the middle of their monthly menstrual cycle. The average cycle length for a woman is between 23 to 35 days. It is possible, however, to have a longer or shorter menstrual cycle. Sometimes it is even possible to have ovulation occur twice in one month, or to have a month where no ovulation occurs at all. Most doctors agree that ovulation usually happens 13 to 14 days before starting your period or monthly bleeding.
Each month, as a woman, your saliva goes through changes because of different hormones. One of these hormones is estrogen. Just prior to ovulation, estrogen levels increase and create a distinct pattern in your dried saliva that looks like frost on a window pane. This pattern is called ferning.
When you see these patterns you will know that ovulation is likely to occur in the next 24 to 72 hours. However you are able to see through using this method, your estrogen levels increase daily.
It is important to note that an estrogen surge or ovulation may not occur in all cycles.
Results will typically appear as shown in this image, however please note that the results have been enhanced in black. The unit you choose may also have a different color illumination.
Picture of the ferning: