What are my best options?

Don't do anything rash. Before telling your parents, really sit down and think about your options and what you want to do. Whatever you decide, don't let anyone- your boyfriend or your parents try and persuade you differently. Although you are a minor you still have rights. The best thing to do afterward is to be upfront and honest with your parents. They will be shocked and disappointed, but hopefully understanding and supportive. If they are not supportive, try and reach out to someone else who you trust to help you through it.