BC infertility?

Okay so I'm 16 and my boyfriend and I are currently sexually active. I've been wanting to go on Bc for several months now but my mom won't let me because she thinks that being on Bc this young will cause problems with my fertility when I'm older. I was recently talking to my friend about it and she told me that I could be able to get the Bc without my mom knowing and that she'd take me if I made an appointment. I was actually going to do it but when I told my boyfriend he said that i shouldn't do it because I could get in trouble. But I honestly get so paranoid after we have sex even though we use condoms each time. So I don't know what I should do, what do you guys think?