I think i may be pregnant but i am unsure i have alot of the symptoms. I have been having nausea, tender breasts, peeing more often, severe stomach pains, back pain, also dizziness, also really bad headaches. My headaches get so bad i can't see good my vision goes blurry and i can't concentrate. I am have taken one home pregnancy test and it said negatitive i am just wondering should i take another home pregnancy test and if the dizziness and headaches normal for pregnancy? Please help!!!