Can my cracked tooth be saved? (photos)

Hi, I bit on something hard and my tooth cracked. I think it may be one of my root canal tooth. There is a very mild shooting pain when I chew on it. The crack moves slightly but I would like to avoid extraction, so I was wondering if it looks like I can get a crown? I will be seeing the dentist in a week, will my tooth be okay in that time frame? I'm eating soft foods in the meantime.