Do what you feel comfortable with. I carried on as normal as soon as I left hospital with each baby. With ds2 we had ds1's birthday party which was a huge event as we were in Perth visiting family so made it a big affair with lots of people the week after ds2 was born. Other events in the first weeks after babies included a baptism and going to the races. Ds2 and ds3 were also only weeks old when they were baptised and they were big affairs.