i dont know if im pregnant or not. :-( i'm pretty sure i am.on sept 12 i had unprotected sex.my last period was on the 24 of august.i was on birth control since march.first i was on depo then i was on nuvea ring i june.the i stopped using birth control.i had three regular periods when i stopped using it.my periods stopped in sept.on the 18 i took a neggative test.on the 26 of sept i took a possitive test. three days ago i took a urine test.negative at a clinic.they told me that drinking water can make the test wrong.i drank about two bottles of water within in a hour of taking the test.lately i have been noticably tired.my breasts have grown and i get sick between 1 and 3 every afternoon.and i have put 5 pounds.i havent been stressed.could be pregnant.if im not then what could be wrong?