An LH test is done by analyzing the levels of luteinizing hormone in the urine with a test strip. You can buy the LH test strips in our webshop or at your local pharmacy ✨ The tests are commonly known as "ovulation tests" or OPKs (ovulation prediction kits). LH is always present in the body; that is why you can often see a light second band on the strip when testing 👀 With that said, it is only when both lines are equally strong that the test is considered positive 💜 LH tests are optional and not a requirement for the algorithm @Aeva Cycle Tracking #naturalcycles #hormonefreebirthcontrol #lhtest #luteinizinghormone #ovulationtests