Since ovulation kits test for LH, they may yield positive results all the time or on several days. These positive results are false-positives—they don't mean you're ovulating. They can signal that your body is trying to ovulate, but they can't confirm that ovulation happened.

Can I have a negative ovulation test but still ovulate?

Along with pregnancy tests, it is possible to get a negative result on your ovulation test when you are in fact ovulating. One thing you can do to avoid getting a false-negative test result is to be sure you are testing early or late enough in your cycle.

Can a positive ovulation test be wrong?

Ovulation tests are more than 95% accurate, but can sometimes give false-positive results. Getting a negative result may not necessarily indicate a lack of ovulation, but may also be because you tested too late or too early, or possibly missed following some instruction.