A pregnancy test that shows no pregnancy after six days of delayed menstruation is usually not a sure sign of pregnancy and requires a blood test for human chorionic gonadotropin (HCG) to determine.
Women who have delayed their period for six days after having unprotected sex are generally considered to be pregnant. When using a pregnancy test, if the pregnancy is short and the amount of human chorionic gonadotropin in the urine is insufficient, the test may not show up and the test will be negative.
In this case, pregnancy cannot be ruled out, and you need to go to the hospital for blood tests to determine whether you are pregnant or not.
If your period has been delayed for six days, you should go to the hospital as soon as possible for a relevant examination to clearly diagnose whether you are pregnant or not, do not judge on your own to avoid adverse consequences.