A particularly shallow and almost invisible pregnancy test can be caused by looking at the results too early, being pregnant for too short a period of time, the failure of the pregnancy test, or drinking too much water before the test. Looking at the pregnancy test too early may be the pregnancy test person did not wait until the corresponding time, the results of the interpretation, at this time you can wait for a longer period of time, read the results again. Pregnancy time is too short may lead to the level of human chorionic gonadotropin in the urine did not reach the level that can be detected or the concentration is too low, making the results show a weak positive, at this time, you can wait a few days to take a pregnancy test again or go to the hospital to perform the relevant early pregnancy test. The pregnancy test stick is invalid or contaminated, making the test stick particularly shallow, at this time, you can change a pregnancy test stick and take the test again. If you drank too much water before the test, causing the concentration of human chorionic gonadotropin in your urine to drop, making the result particularly shallow, you can wait for the next day to take the test again or go to the hospital for an early pregnancy test. Therefore, if the pregnancy test is particularly shallow, you can go to the hospital for an early pregnancy test to determine whether you are pregnant or not.