Chances of being Rescinded?

Hello all. I recently have been admitted to Indiana University, but not direct admit into Kelley Business School. I was wondering if I will get rescinded on my application since my grades have taken a hit due to my classes being harder(I am in no way experiencing senioritis).

Class First Semester: Second Semester:
Intro to Calculus D F
AP Comp Sci B C
Spanish 4 C C<br>
Gym A A
Lit and Film B Right in between A and B
Ap Government B C
AP Biology B C

I also have put math on pass fail but I am not sure if I will be able to get it removed from my gpa calculations. My gpa in my predicted is 3.0 or 2.6 if I do not have a pass fail. I have had a history of hard times in math, such as D’s being my math grades since second semester sophomore year. My current cumulative gpa is 3.2. I am really worried that my admission will be rescinded and am thinking I should send in my enrollment fee to another school as a safety just in case I lose my spot at Indiana.

can I ask you how things went?