Yes, you can get into trouble for lying about being abused. It is important for you to realize that when you lie about being abused this can ruin one of your parents reputations; someone else's reputation and the stigmatism (label) can stay with them for life even though they were found innocent by the police or a court of law. It is far better for you to be honest with the police about it. You will not go to jail for what you did.