 [ Symptoms ] is it common to fail a pregnancy test yet be pregnant  i am 37 and have very regular periods the only time i have ever been late is when i was pregnant i am now 10 days late and have taken several tests that all say negative but i am having all the symptoms what else could it be if i am not [ Disease ] hi did you take any medication recently for stomach problems if yes what are they start on vitamin c supplements and vitamin k also you should see an oncologist to check for leukemia sorry but you have no fever so your symptoms can not point to any infection good luck