Get into the swing of your cycle

Knowledge is power—and we’re here to help you be an ovulation expert

How ovulation works

Let's start with the basics

What is ovulation?

This is the once-per-cycle event where an egg is released from a dominant follicle within the ovaries and can be fertilized for pregnancy. If you're trying to conceive, you'll want to have sperm ready and waiting for the egg's arrival.

What is LH?

The luteinizing hormone (LH) is what tells your body that it's time to ovulate. This happens roughly in the middle of the cycle (or a good rule of thumb is your average cycle length minus 14 days): your LH will skyrocket, and it can be detected in your urine with our Ovulation Test.

Ovulation versus fertile days

Think of ovulation as a multi-part production, where the egg's release is the finale. The show ends rather quickly after the egg shows up—just
24 hours later. But the good news is you don't have to wait for the egg to land to have sex/inseminate. Sperm can live in the fallopian tubes for a few days, so it's ideal to have them already in position for when the egg arrives.

Finding your fertile window

Example of fertile window for a 28-day cycle

In this example, the LH surge begins on cycle day 12. It continues to increase for two days, until it hits its peak on day 14. Within 36 hours, the egg is released (ovulation!), which means the best time to have sex/inseminate is daily or every other day from day 12 to day 15.