By the way - you're NOT going to see ANY fusion until about 6 MONTHS to a year!!! You certainly will NOT see it this soon! It takes quite awhile for fusion to begin. You've got to remember that fusion is where bone grows to bone, and that takes a good long time.
So be patient. This is a long process. Just don't do anything that will damage things. Make sure you stay within the limitations that your doctor gave you. God bless! Hugs, Lee