We don't have to be picky about it being on time Mary. You take care of yourself first and who ever gets your wall hanging will understand I am sure if you need more time. Besides you have until the end of Oct to get it in on time. There are others who have interruptions too and that is one of the reasons I made it a 4 mo swap so we had more time to fit it in to busy schedules.
Don't stress you can turn it in whenever you get it done. Your health comes first and foremost always!!!