If you are just pregnant, for example, just about 35 days after menopause, often the use of the second urine in the morning to detect pregnancy results, because at this time the HCG in the urine can be relatively low, and only the use of the first urine in the morning to detect the concentration will be high, the rate of positivity will be high. With the further progress of pregnancy. When the pregnancy to 40 days later, whether it is the morning urine, noon urine or when the urine, urine HCG test will detect a positive result, because at this time with the further development of the pregnancy, the body’s HCG concentration will gradually rise, so the HCG in the urine, no matter when, will reach a certain level of concentration, will show a positive result, it is recommended that according to different It is recommended to decide when to use urine for early pregnancy test depending on the number of days of pregnancy.