Hiya Tracy, i have got mine on tuesday! I feel same about size everyone says when swelling goes down you wish you had gone bigger.
My friend gave me some advice take a button down or zip top because you will struggle putting things over your head to come home. Also she was starving that night so if someone is coming to see you ask them to bring some munchies.
Where are you on Monday? Im in Manchester Tuesday so nervous now the reality is kicking in.
Good luck hope all goes well
x x x