The early pregnancy stick is a medical device to detect early pregnancy and its main purpose is to determine whether or not you are pregnant. When using a pregnancy test stick, it should be used in strict accordance with the instructions of the stick, which can improve the accuracy of the early pregnancy test results. Generally, the first morning urine in the morning is used as the test specimen. After adding the urine to be tested to the area to be tested on the pregnancy test stick, the results will be available after about 3-5 minutes of observation. The result of the test is positive if a red line appears in both the test and control areas, indicating pregnancy, and negative if there is only a red line in the control area but no red line in the test area, indicating no pregnancy. If the method is not appropriate or if the test strip is out of date, the test will fail and there will be no red line or a red line in the test area but no red line in the control area.