Yutin pregnancy test is also called early pregnancy test, the use of the correct method, the results are more accurate. The principle of early pregnancy test is to detect the concentration of human chorionic gonadotropin in the urine, the concentration is more than the normal range, the detection area appears two obvious color band, it means positive, indicating that the pregnancy. If you are not pregnant or the concentration is particularly low, the test paper’s control area shows a colored band, indicating negative, indicating that you are not pregnant. It is recommended that after 14 days after intercourse or after 7 days after menopause to use the early pregnancy test stick to detect pregnancy more accurately, as far as possible to choose the morning urine to detect pregnancy, morning urine in the human chorionic gonadotropin concentration is relatively high, the test results will be more accurate. The process of testing should master the correct method, for example, before the test first check whether the pregnancy test stick is within the validity period, there is no damage or contamination, try to observe the results within 3 to 5 minutes, placed too long before observing may not be accurate. Early pregnancy test stick can only be used as a primary screening test, do not overly rely on it, because the use of early pregnancy test paper test will appear false positive or false negative. Early morning pregnancy test is used to initially determine whether a woman is pregnant, is a method of self-testing, if you want to finally determine the pregnancy, you still have to go to the hospital to do a formal examination to further confirm.