I'm applying right now for August, and I take the MCAT on Monday. The admissions counselor told me that it would be best to get the rest of your app in before you take the test, so that once they get your scores, you'll know as soon as possible. I know that I can't get into a US school unless I got a 35+, so I'm not even trying for that. All I can say is good luck, I'm in the same boat as you.