Admissions

My mom talked to someone who is involved in UW Madison, specifically CALS, which is where I am applying. I am not accepted yet, and this person had said that they may be waiting to review my grades and class ranking. My class rank does not truly reflect my grades as I have a small class with many smart kids. (I am 18 of 49 with a 3.86) I am very worried because right now I have all A’s except for a B in AP Calculus and AP Biology. Will this affect me too much that I am denied?