welcome to Health care magic.
1.This kind of symptoms are seen in the case of late pregnancies since you are bearing a weight which is normally not there, so there will be difference.
2.Only thing you have to do is lie in comfortable position and request your treating doctor for basic
pregnancy exercises, and few safe pain killers.
3.Sorry that you have to go through this as you wanted to be with your mother with you in the last moment.
4.The due date is actually not the rock solid date, its just an estimation, it can be few days before or after depending on the body physiology and baby factors.
5.Your mother may be with you after the treatment (if small procedure) other wise you have to be brave to face, all matter of days...good luck.
Hope it helps you. Wish you a good health.
Anything to ask ? do not hesitate. Thank you.