I would try not to over do it - think about yourself and your baby before the feelings of your family. I had my DS 6 days before xmas (was due on the 18th too lol) and had only been out of hospital 2 days. We told everyone not to rely on us that year (ie for food etc as we all usually share the load). We made it to my parents house and stayed for only about 2-3 hours instead of the usual whole day thing. I felt tired and ds wasnt settling very well as he had been passed from pillar to post and it was quite noisy etc.
No one tells you how bad you feel after birth too, like not just physically (you may have stitches) but its a very strong emotional time also. You will still be establishing b/feeding.

I just re-read my post and it sounded a little more negative than i intended. I guess what i am trying to say is dont feel pressured into doing too much at once. Dont get upset that you may be hurting someones feeling by leaving early or tellig them they cant hold the baby.

I hope you have a lovely christmas though and bub might wait for you lol. I always said that he had to come either on his edd or wait till boxing day as i didnt want to celebrate chrissy in hospital. Good luck xxx