Hi @LisaMacvicar ...
Sorry to hear that you are having difficulties accessing your course in your school's Canvas environment. Unfortunately, Canvas Community members can't open up your course for you because we don't have access to your school's Canvas environment or your course(s). Typically, your instructor is the one responsible for publishing the course. If you cannot access your course (because it is not published), this also means that all your classmates cannot access the course, either. If you can reach out to your instructor via e-mail or phone, that would be the best route to take. Otherwise, you might need to get your school's Online Learning / eLearning / Distance Education department or your school's Canvas administrator involved to see what they can do.
Good luck to you!