mom controlling my birth control !!

Hey! So I've been on nexplanon for 4 months going on 5, (my mom wanted me to go on birth control) I personally didn't want to go on the implant but she was insisting that I did because it last for 3 years, I got on the implant and a week later I was experiencing spotting everyday up until this point, now I'm on a actual period. I tried telling her it's not for me and I feel sick but she's saying I can take it out after 6 months I can't wait 2 more months !! I want it out now or at least change the birth control, is there anyway that I can make her change her mind and let me take it out??? ( I'm 17 )