Birth control

So my boyfriend and I have been dating for a while and we both think it is time to take our relationship to the next level. However, I am not currently on the pill. I DO NOT want to have sex until I am on the pill. I also cannot tell my parents we are sexually active and that I want to go on the pill. Plus my mom always goes back in the doctors office with me. Is there anything I can say to get on the pill without anyone thinking it's because I want to have sex?