E3G is a metabolite of estrogen. It’s an essential hormone in your body’s fertility. By combining LH (luteinizing hormone) and E3G (estrogen) readings, you pinpoint your full fertile window and ovulation. E3G and LH are related to IVF (In Vetro Fertilization), menopause, and hormone imbalances such as PCOS. The MAX wands also track PdG, which stands for "Pregnanediol-3-glucuronide" and is the metabolite of progesterone. It starts rising 1-2 days after LH peak and peaks at about 6-8 days after ovulation, which plays an essential role in our bodies. By tracking them, you’re getting more out of your hormone tracking-you’re getting full reproductive health insights. Track your full cycle and get hormone updates. See your 6-day fertile window and get crystal clear, accurate insights even if you have irregular cycles or PCOS. Say hello to AI-powered fertility clarity and goodbye to guesswork for good. Mira is the only fertility tracker that gives you actual and accurate LH, E3G, and PdG hormone scores, levels, and trends. Unlike traditional OPKs, Mira’s hormone patterns are 100% true to your cycle. See insights cycle analysis, join the Mira community, get exclusive promotions and other perks on the Mira App. Mira Fertility Plus Starter Kit includes the Mira analyzer with 10 testing wands to track E3G, and LH. Make sure your analyzer is fully charged before first use so you can monitor your hormone levels. Important to read all directions before first use and that the correct side of the wand is inserted into the monitor. Contact Mira customer service for any troubleshooting support. Follow all instructions.