I recently took a course in the math department. During the final, I used calculator to compute some large numbers. Then my professor asked me if I use calculator in the exam, and I admitted it immediately. Since the professor didn't mention if we can use calculator in the exam on the first page of the exam instruction and in the exam rule. Also, the professor asked us to compute the exact number of this type of question instead of leaving the equation. That's why I use calculator. Also, I didn’t read the question carefully, which result me to calculate the exact number. Besides this, I always participated in class actively, I asked questions, and pointed out the mistakes the professor made. My point is I really learned by myself, and I did the exam by myself, only one question using calculator.
After the professor told me that he/she would report to the academic integrity, I talked to her/him, that why I use calculator. Then I was informed that it was stated in the syllabus. Unfortunately, I didn't read the syllabus thoroughly. I understand it's my fault, but I didn't mean to do that.
It was my last course before graduating, and I never cheated in any exam. For now, I'm really stressed out since I'm worried that it may influence my graduation.
I'm looking for someone who used to have a similar situation and wants to know how the process will go, and how serious the punishment will be.