Test strips to detect pregnancy after drinking alcohol are not always accurate. The use of test strips to detect after drinking alcohol may result in dilution of urine due to the intake of a large amount of water into the body, reducing the concentration of HCG in the urine and causing false-negative detection errors in the test strips. To detect pregnancy through test strips, it is best to choose the morning urine test at about 35 days after menopause, when the HCG concentration in urine is higher and the test results reflect more accurate. For normal menstruation and sex women, the phenomenon of menopause, we should consider the possibility of early pregnancy, in addition to the test paper test, it is recommended that you can go to the hospital obstetrics and gynecology clinic, under the advice of the doctor to choose the blood test, through the blood concentration of HCG to check the conclusion of the pregnancy, earlier than the time of the urine test and the results are more accurate.