I'm 16 and in a relationship. my mom just found a condom in my wallet that I had put there for the time my boyfriend and I decide to have sex. She decided to have the sex talk with and said that I needed birth control but I told her the condom wasn't mine that It was a joke. I want to ask her for birth control but idk how to especially now that she doesn't think I'm having sex or will be having sex. What should I do? and how should I ask?