question: I m have been having mild cramping..nausea extremely tired..took a pregnancy test well 4..the 1st one was invaild for the first hour then became positive slowly..the 2nd one was positive but the line was faint the 3rd was neg and 4th neg.. period due on Tuesday.cramping is more in my back like an kidney infection and only hurts when Ineed to pee no cramping in stomach.