Birthcontrol for a 13 year old?!?! Please?

I am 13 and I have always told my mom everything. She doesn't trust me AT ALL because I have a lot of guy friends and I have never gave her a reason not too trust me. She always assumes things and I hate it. I have NEVER had a boyfriend because she says I have too be on birth control too have one (I only mean HOLDING HANDS!). She thinks I will have sex and I am waiting until marriage but she wants too put me on birth control! She won't let me have a boyfriend either. I haven't even kissed a boy and she assumes things. She also wants me too go too the OB/GYN and get a pelvic exam!!! How do I get this too stop? I don't want too be on bc! Why doesn't she trust me at all? I have had straight A's my whole life and have never disobeyed her and I tell her EVERYTHING. She stalks my facebook too and I want it too stop...Thanks