<p>I know it’s really scary but your chances are best if you call them asap. There may be a way to work this out, but you must call the admissions office. Don’t wait for them to find out from your school. Some (all? - not sure) schools automatically report Ds and Fs to the admitting colleges. You don’t want to look like you are engaging in a coverup so it’s best to be proactive and call.</p>