A doctor won't induce you unless there are reasons it is safer to deliver the baby early. I had gallstones and a gallbladder that needed to be removed and pancreatitis and they still waited until after the pregnancy to do anything.
Oh then it is a possibility but your baby could also come late I hope mine comes early too I wish there was a way of knowing exactly when he could come!
You could deliver any where between 37-42 weeks if your baby it's premature but I'd say its not likely you'll deliver in December if your due mid to late January just remember the longer he/she is in there the better they probably won't induce you because your tired/rundown because of your kidney problems