If you feel like you have to urine every thirty minutes or so and there is blood in your urine is that a sign of pregnancy?

Probably not. It sounds like you have a real bad infection in there and you should go to the doctors to get a pap. If you dont it could cause some major problems that you do not want. This could also be a strong sign of a Urinary Tract Infection. Blood in the urine "hematuria", can be caused by kidney stones as well. I would recommend seeing your Primary Care Physician as soon as possible.