With a fertility ovulation saliva microscope you can predict fertility by viewing the visual changes that take place in your saliva throughout your cycle.

With a fertility ovulation saliva microscope you can predict fertility by viewing the visual changes that take place in your saliva throughout your cycle. Just prior to ovulation, women experience an "estrogen surge". The fertility microscope allows you to observe the fern-like patterns that are present in your saliva due to this increase in estrogen. The crystal patterns, or "ferning", can be easily identified through the magnification of the lens - helping you predict ovulation as much as 72 hours in advance.