If your period is delayed for 6 days and the test paper shows that you are not pregnant, it may be caused by factors such as impending menstruation, endocrine disorders, and early pregnancy detection. 1. The imminent onset of menstruation: under normal circumstances, some women may experience a delay of 6 days, after 6 days may have a normal onset of menstruation, which may lead to the test paper shows no pregnancy. 2. Endocrine disorders: If the female patient is overly anxious and stressed, it may cause endocrine disorders and menstrual disorders, which may cause the period to be delayed for 6 days, but the pregnancy test paper shows that there is no pregnancy. 3. pregnancy test too early: menstruation delayed 6 days, the urine human chorionic gonadotropin content is relatively low, premature use of pregnancy test paper detection, there may be false negative test results, showing no pregnancy. A retest in a week or so may show a positive result. Test strips that show no pregnancy when your period has been delayed for 6 days need to be handled appropriately under the guidance of a medical professional.