I've been having trouble urinating...blood?

You probably have a urinary tract infection that can be helped with antibiotics, but it could also be a prostate problem, kidney stones, an STD or even cancer. I'm sorry you have no insurance. Is there a clinic for low income people you can go to? If not, try an appointment with a local doctor , that will be the cheapest compared to an urgent care or an ER. Still it's going to cost at least a couple hundred. There's no getting around it. If you find a doctor in a lower income neighborhood, his prices will be much cheaper. Stay out of the suburbs.