Then she should either: (1) find an insurance policy that covers it and pay the premium, or (2) pay for the contraceptives, herself - because it has already been shown that you can purchase oral contraceptives for as low as $9 a month.
There is no right to receive health insurance from your employer or your school, period ... let alone that the subsidized insurance you do have access to has to contain all of the benefits you want. Insurance is a product, nothing more and nothing less, which employers use as part of the compensation package they offer to their employees. Negotiate for better insurance coverage or a higher salary to help pay for your own. If your negotiations are not successful, then either accept it or move on to another job opportunity. Likewise, if it is so damn important that your school subsidize your $9 per month birth control cost and it won't ... well ... drop out and enroll in a different school ... or quit being a whiny tightwad and just pay the measly $9 per month!
Government has absolutely no authority to insert itself into this equation. But, you leftist hypocrites, who are always bleating about government needing to stay out of everyone's bedroom, sure are gung ho about having the government insert itself into everyone's sex life when there is an opportunity to extort money from the taxpayers for your special, privileged classes of people. 