9 days late!

Kassi

Help!!! I am 9 days late for AF, but still getting a negative with pregnancy tests! I have used different tests and tested at different times of the day! My period is normally very regular, between 28-30 days. I am now on day 39 of this cycle! I have a general feeling of just feeling different, but no typical pregnancy symptoms! Has anyone had this happen and were in fact pregnant?! Going crazy here! Thanks!