I am 10 days late for my period. its always been ontime.i have had cramps in my belly for about 3 weeks. its not normal mestral cramps they are off and on and not as lpainful. i also feel cramps right when i have to pee. i have been feeling really nausus for about a week and getting dizzy alot. i have taken a test and it read negative. i went to the doctors and theres was negative as well. could i be pregnant?