Im 4 days late on my period which is always on time. My appetite, sleep, animals, cravings, and moods say I should be pregnant. I took 3 tests pregnancy tests already one earlier today and two before my missed period. ALL said negative. So any idea on whats going on? Am I pregnant or not? Should I cancel my appt with my dr for a blood draw pregnancy test or not? Is it me or the tests.? Sorry for all the questions I'm just very confused and concerned...