M.W.
Congratualtions!! I am still nesting and my kids are 11,9 and 5. I am always doing things to make our "nest" warm,cozy,inviting and a safe haven for my family and all who visit. I think it is just a mama thing. Though when you are pregnant there is a sense of urgency because a little one is soon joining the nest and you want to be prepared and ready.
But...overall I think nesting is a continuous feeling. That is why women tend to do all the holiday tradition stuff, crafty things and all the foo foo stuff around the house. Women have a tendency to bedazzle everything..it is our nature.
Good luck and best wishes with this upcoming arrival...it is a wonderful time.