Just an idea here....but.....
Do you have anyone around to help you with your mother during her visit? By then, you will likely be 90% back to normal, everyday (non-impact) activities. But, as was mentioned, you will not be in a position to assist your mother with lifting, getting in/out of a chair or bathtub, etc. If you can hire someone to assist, then maybe you can do both. Otherwise, postpone (and deal with pain a while longer), or delay her trip a few months if possible.
Also, as was mentioned, don't put yourself in a position where you might screw up and hurt yourself. Once the pain is gone (and it is the moment you wake up), you might be inclined to do something you shouldn't during her visit. That is a bad recipe.....
Good luck.