If you have a regular menstrual cycle and are experiencing a significant delay, it may be a good idea to take another pregnancy test. Sometimes, the hormones that indicate pregnancy may not be present in high enough levels to be detected in a test taken too early. Wait a couple of days before taking a new test and try to use your first urine of the day for the most accurate results. If the test still shows negative and your period has not arrived, it is advisable to consult a healthcare professional for further advice and evaluation.