We understand that it may be difficult to correctly read your LH test and tell whether it's positive or negative. You can use the 'Compare' feature in the Add Data page under LH and see how your test measures up in our LH slider:
Below, you will find an example of a positive and a negative Natural Cycles brand LH test result. The main rule to follow when analyzing your LH test is that the test line should be as strong as the control line. Please check the manufacturer's information if you are using another brand of LH tests. If the test line isn't as strong as the control line, then the test is considered a negative result.
Positive LH test: The test line (to the left) is as strong as the control line (to the right). You can add this as a positive into the app.
Negative LH test: The test line is weak. You should take another test a couple of hours later, at least 2h later, and minimize the intake of fluids during this time.