I am 32 years old, and just had a baby 7 weeks ago. Two days ago, I started experiencing the urge to constantly urinate, and assumed it was a bladder infection. I have drank a lot of cranberry juice, hoping that would help, but instead it has escalated and now I am experiencing a lot of lower back pain and abdominal cramping. I m trying to make an appointment with my Dr, but she can t get me in for a few days. Any idea what this is, and if there is anything I can do to relieve the pain in the mean time?