The way it does this is by tracking the levels of luteinizing hormone in your pee. It's the same method that those drugstore fertility monitors use to figure out if you're ovulating, but the difference with the Mira is that it keeps track of that information so that you don't have to do it. You pee on the one-time-use Mira fertility wand, stick it into the egg-shaped digital reader, and voila, you'll see if you're ovulating in the tiny digital screen. It'll also send that information over to a companion app via Bluetooth. Apparently Mira uses a different kind of fertility wand than its drugstore counterpart -- it uses a fluorescent immunoassay that actually tells you the quantity of LH in your urine.

One of the problems with over-the-counter fertility monitors is that they don't often tell you much beyond if you happen to be ovulating at the time you're taking the test. If you are, there's a smiley face, and if you're not, there's nothing. The Mira fertility monitor, however, is a little different. It has an AI so that it learns your patterns over time, and will figure out when you're ovulating potentially weeks before it happens. The way it does this is by tracking the levels of luteinizing hormone in your pee.