I think you have a great shot, especially coming from a small town and making use of your opportunities. It’s hard to say for Harvard but everyone that applies has a shot! BU should be fairly straightforward ( maybe 80-90% shot)
I’m in the same boat as you (waiting for decisions and I am super worried XD. I’m male btw) chance please!
http://talk.collegeconfidential.com/discussion/comment/18139091#Comment_18139091