Will I get rescinded- American University

I got accepted into American University this year as an incoming freshman my weighted GPA is somewhere around a 3.2 my SAT score is 1280. This semester I got a c- in physics the lowest ever grade I have gotten ( I have got c’s before but never a c-) my gpa this semester was a 2.9. I’m freaking out that my admission letter is going to get rescinded! Anyone have any idea about the school’s policy on this or the likely outcome?

Call and ask.