If you are not pregnant but the test paper is positive, it is a false positive test result. There are many reasons for this. 1. First of all, it may be the use of drugs before the test, which may cause false positive results, or it may be the case that you are suffering from some diseases, such as tumor diseases, or gravida, bronchial cancer, kidney cancer, etc., which may lead to false positive test results. 2. The use of expired test paper, because it has lost its effectiveness, the chemical reagents no longer work, so when you buy it, you should pay attention to see if it is expired. 3. 3. It is possible that the test paper that has been damped is used, so the result of the test is no longer accurate and you can choose to do the test again. Moreover, it is better to go to the hospital for a blood test 2 weeks after intercourse instead of simply trusting the early pregnancy test.