Advice

So me and my boyfriend have been having sex since I was 14. (I know young) I’m 16 now (i know still young) and still with him and when we have sex we always use a condom but I’m not on the pill. I want to go on it but when I’ve tried talking to my mother about it she completely shut me down because she doesn’t believe in it and wants to think I’m not having sex. How should I go about it again? It’s my body and my choices. Also, if I do go on it, do you have any recommendations for which pill?