There is still hope in taking a white board test one day after menstruation delay, it may be caused by testing too early and measuring incorrectly, it is recommended to take the test after menstruation has been delayed for seven days. Taking a blank slate means that there is an invalid result after using a pregnancy test, normally, a negative result means that there is no pregnancy and a positive result could be a pregnancy. Although, the test result is a blank slate after a day’s delay in menstruation, there is still hope for pregnancy and there is no need to worry unduly. Usually, a seven-day delay in menstruation is still within the normal range, so a one-day delay in menstruation is not necessarily caused by pregnancy, and it is only when menstruation is delayed for seven days that you need to consider that it may be due to pregnancy. Therefore, one day delayed menstruation test for white boards may be caused by the test time is too early, but also may be the cause of improper operation during the test. To summarize, during this period, you need to pay more attention to rest and keep your mood happy, and it is recommended that you retest after seven days of delayed menstruation, or go to the hospital, draw blood to test human chorionic gonadotropin and perform pelvic ultrasonography (when your menstruation is delayed for about 40 days), to ascertain whether you are pregnant or not.