So I am worried something is very wrong. I took two positive hpt went to the dr did urine and blood test both came back negative. Normally af shows up a few days later. Well here I am either 6-10 days late (depending on what app I look at). My dr is already doing tests to see if I have diabetes or kidney disease. Yes I am over weight. Today I am feeling nauseous and wondering if the blood test could have been wrong? I know highly unlikely but still. Would the protien cause my period to be this late? If there is any in my urine.