okay so i am 4 days late and im always on track? So i took a digital test it said not pregnant and i did one dis morning and last nite they both did the same thing...ok idc if im not but ive always taken them apart just to fiddle around and the pee strip thing had two blue lines why would it say not pregnant if theres two lines? does the line have to be extremly dark? cause they say digital is the best..don't be rude and if you plan on it just move on! thanks alot..