You WILL plead guilty because you were FOUND with it, but its up to you, if you chose to NOT plead guilty, you could get a lawyer and fight for you that you were not carrying and that is not yours. And no you won't just the pay and be home, you can be jailed for up to a year, it will depend on your history. Its going to be a class a nonperson misdemeanor so I suggest you look what that means in your municipal