So I took 5 at home pregnancy tests, One was a clear blue digital & it said "pregnant" but had the book symbol which means error, & the rest of the tests were negative after that, so I took a blood test & that was also negative, I am 9 days late & don't really have any symptoms of my period except being really emotiona! I just recently got off birth control about 3 months ago but my periods are usually pretty regular! Could I be pregnant?? Has anyone had this happen before?? I was sure the blood test was gonna come back positive & was a little disappointed when it didn't.