The second bar is a colorless watermark may be pregnant, the test may be too short, or the test method may be incorrect. Pregnancy test paper is generally a test for early pregnancy, for women with regular periods as long as the test method is correct, the accuracy is very high. It is usually used when menstruation has been delayed for more than 7 days and can be taken in morning urine. The result of the test shows one negative bar, which means that you are not pregnant; two positive bars, which means that you are pregnant; and one dark bar and one light bar, which means that you are weakly positive, which means that you are more likely to be pregnant, but the test time is too short, so you can take the test again in a couple of days. Therefore, the second bar is a colorless watermark may also be pregnant, may be the test time is too short, may also be the test method is not correct. You can take another test in a few days, or go to the hospital for a blood test for human chorionic gonadotropin to confirm the diagnosis. The second bar is a colorless watermark, if you want to make a clear diagnosis as soon as possible, it is recommended to go to a regular hospital.