Talk to your dean. I think 196 is too close for comfort to take it. I'd be surprised if your school would make you roll the dice on that and ultimately it is your decision.
A 196 with 4 days to go is not where you want to be. If I were in your position I'd do anything in my power to postpone for another 5-6 weeks. People who study smart in that period end up doing well. Best of luck!