Early pregnancy test strips need to be inserted into the urine with a section labeled MAX, the liquid level should not exceed the MAX line, and the results should be observed for 1~5 minutes to be correct. Early pregnancy test paper can confirm pregnancy by detecting the level of HCG (Human Chorionic Gonadotropin) in urine, which is an easy and fast way to diagnose early pregnancy. It is recommended to select the morning urine of the test subject, insert the test paper labeled MAX (Maximum Liquid Level Line) into the urine, pay attention to the liquid level should not exceed the MAX line, and wait for 1~5 minutes to observe the results, the results are invalid after 10 minutes. When the early pregnancy test paper white display area only shows a red line at the upper end of the negative, the white area shows two red lines above and below the positive, suggesting pregnancy, when the test strip does not appear on the red line suggests that the test paper is invalid or the test method fails to be re-examined. However, after the early pregnancy test confirms pregnancy, you should also follow the doctor’s instructions to do ultrasound to determine intrauterine pregnancy.