it depends on a lot of things..your major, how much of your major requirement you've completed, how many pre-med requirements you've completed, random requirements some med schools have in regards to statistics/biochem/english, etc etc. two sciences is an ok number, but don't forget things like labs and stuff. liberal arts courses are always good. you've gotta find that balance, and judging by the fact that you're going into your 3rd year, you know more than anyone else what you can handle and what you can't.