Don't convert that bike into anything. Ride it for what it is. I'm going to wager that you ordered something without really doing the research and knew all along that, after you got it, you were riding a woman-specific model. It's cool. Move on.
As far as making a modification that is dangerous and stupid, please don't.
I also encourage you not to purchase online unless your dealing with a smaller shop where you have personally been in contact with a sales representative, owner or builder who can work with you to get you what you want. Do not just wander into a random LBS and tell them "I want a fixie." This mindset and the idea that its better than sending him to bikesdirect is not beneficial to him or the riding community.
Please, OP. Read the newbie threads here for your information. Spend a little time doing some research, ask questions and be prepared to take a little heat for being a newb. We all were there once, everybody has been hazed mildly here and in real life in some form. Not everything is bullying and mollycoddling has already failed.