Birth control 😔 (kinda long)

So my mom has been telling me for 10 months that she's going to get me in birth control but she still hasn't. Ive asked her multiple times and my friend even offered to take me but she said no. The place my friend was going to take me basically would've paid for all or most of it so she didn't have to do or pay anything and she still said I couldn't. I'm already sexually active but she doesn't know that, I don't want to tell her bc then she won't let me and my boyfriend sleep in the bed together and if we can't do that I will honestly be super pissed. I don't know what else to do I'm so sick of pregnancy scares and to top it all off his dad is on our case bc he does know we've done it and that I need to get on birth control. What do I do?!?
Edit: we are both 16 
Edit 2: we use condoms every time but we want birth control just to be saferÂ