Tummy tuck on holidays

Hi ladies,
My doc has said that (providing there are no complications) I will be in hospital for 3 nights after my tummy tuck – on the 4th day he removes my drains and I go home.
I am expecting to be spending most of the next week in bed (or on lounge) resting, but my question is, would you physically be able to go and make an appearance at your sisters birthday party 7 days PO? Be driven there (10 minute drive) walk in, sit at a table while they sing happy birthday, say a few hellos then walk out and get driven home again?
My sister is a bit upset that my op is scheduled at a time where I won’t be able to make her 30th birthday party. Obviously I will have to play it by ear as to how I feel but I’m wondering if it would be impossible and whether i should try to change my surgery date.
I just think the extra week will take me into recovering into Xmas (operation is late October) and I am meant to be hosting xmas and just want to be closer to “healed” by the time Xmas holidays roll around.
Sorry for the long post – appreciate your thoughts!