Track ovulation every month with this lipstick-sized saliva microscope that fits in your pocket. Simply dab your saliva on the lens each morning and view the pattern to see whether you're entering your fertile window. This can help you determine your ovulatory phase, which helps you identify your remaining 3 phases of your cycle pretty easily for cycle syncing superpowers! For those looking for fertility awareness, this is a great tool for you as well. Saliva is 99% accurate and more fool-proof than those OTC urine test strips.