I've had a uti for 2-3 days. i don't have any money for atleast another week. how long before this turns into a kidney infection? anything i can do?

Homeopathy: If your bladder infection is early, you can try cranberry juice--in relatively large quantities (about 1 qt/day). Theory is this changes urine's ph and kills the bacteria. (if you hate cranberry juice--or even if not--you can try getting a small frozen concentrate container and eating it as is, like an italian ice. May work, or slow progress. Try health dept for free/low cost medical clinic info.

See your doctor: You need to be evaluated asap. I am sure there must be some free clinics in your area which can see you.