PINCHED NERVE?

So the past week, on the right side of my body in my lower back (not back bone) but I feel a sharp pain in my hip/upper butt/leg area it doesn't feel like a muscle ... And it only shoots pain when I put weight on it (such as standing on one leg) or I go to turn my leg or lay on that side.(as in going to bed) so pressure pain? It really hurts... Im just curious to what it possibly could be? I am going to the doctor in about a week ..but I like to get others experience s and ideas as well!