I am so sorry to here that you have cancer and that your drs waited until this happened. I can't give you info on having a bag because I don't have one; I had a subtotal and have 2 in. left, I didn't need a bag.
I do know that you will get a ton of support here as well as a wealth of information. This site is like having another family and we are all here to help each other through the tough times and also to celebrate the good times.
I know Thursday seems like forever but try to use this time to get your house in order, make food to put in the freezer, get groceries all stocked up, but things for the hospital; do anything and everything to get through each day - go out with friends, go to the movies, go to the beach, park, have a picnic.
If you have any questions I will be more than happy to answer if I can.
I will keep you in my prayers,