Yes, keep him in, even with slight change with moving up.
Keep your son's routine the same.. Mainly for him. Not a good time to go changing things unless you 'have to'.
You too will welcome this, with new baby here.
Yes, you'll need to get him there and back, but you will need some time with new baby. It takes the pressure off you in those all important early days, when you don't have to entertain a two year old aswell as a new baby.
As long as he is happy at nursery and you can afford it, why change it?
We all suffer with waves of guilt with impending new babies and how they affect our other babys. Make sure when you do have your two year old, find time to do things with him. If you can manage to put baby down inbetween feeds, don't always let them only sleep on you. A habit we can all fall into... Swaddle new baby in thin giant muslin sheets if you can, put baby down, and play with your son. Or, just cuddle him on the sofa watching a DVD... They want you, not necessarily an expensive and energetic trip out somewhere.
I'm pregnant with no 4( (last one for us now)) and I have kept the routine going for all of them, and new baby has learnt from day one to slot in to our family life. We've had major amount of cuddles, but we've also benefitted from putting them down in between feeds in the crib or buggy downstairs. Not religiously. But just tried to balance it.
And that was even breast feeding. Is managed to express so others could feed baby, we introduced bottles with in 2 weeks occasionally.
Have baby, will travel is our motto ... And we've always like to let family and friends hold the baby.. Pass the baby!
Sounds daft, I know, but it's worked for us, triple fold.
Laid back, relaxed attitude.
My two year old is in nursery two days a week, whilst my two girls are at school. All routines will remain the same, and the plan is that new baby boy will settle in nicely... Hey, who knows, he might not, you never know how things will go, but that's the plan anyway.
Congratulations on your new baby coming soon. Enjoy! It's such a wonderful wonderful time and it goes by all too quick.
All offers of help accept, even for another day... And just relax and go with the flow...
xx