Where do I buy birth control

My parents are very religious and strict and with that being said if I asked to get on birth control they would think I am having sex, which I am btw. The problem is me having sex and getting pregnant will end up making my parents pull my tution kick me out of the house and force me to get married to some one. So to avoid all that stress I would like to protect my self and get on the pill and my parents will not understand so no trust me I cannot let them know. Since I'm on their insurance I can't get birth control for free but I need to start birth control asap where do I go to buy it besides planned parent hood. Does cvs sell them