Pelvic pain having to pee every five min pain goes in to my right side and my back could this be kidney stones or something worse?

Either: Seek medical attention. Could be stone or a kidney infection. Either should be dealt with asap.

Uti or stone: This can be a sign of either a bladder, or kidney infection, or a kidney or ureteral stone. You may need an antibiotic if it is an infection. If it is a stone, you may require surgical intervention or simple watchful waiting. Either way it sounds like you should see a urologist, or go to the emergency room if the pain is severe or if you are sick.