Pregnancy blood test

laurey

Hi . So I am due for my period next week . I went to urgent care to check for UTI etc. They ended up doing a pregnancy tests and said there is a faint positive line . So I go to my clinic and get a pregnancy blood test done but it is negative. Could it be possible its not showing up because it's early a week early before my period is due? Just need some thoughts on if anyone has had a similar experience