The pregnancy test stick measures a line, which is considered negative and not pregnant. However, the success rate of pregnancy test is 75%, and pregnancy cannot be completely ruled out. If the test is too early, the result will be inaccurate. It is still within the normal range to delay or advance menstruation by one week. It is recommended to relax and continue to observe. If you are not at ease, you can check your blood HCG and make a preliminary diagnosis. f