I'm in quite a predicament.?

First off, you were very mature to talk to your mother about what happened. This is a very touchy mother/daughter issue! Ugh! My advice would be to keep taking the pills (I know you don't want to) and keep showing your mother that you are a responsible, mature girl. After all, she is trying to protect you. You will earn your mother's trust back at some point, just be patient.