When I was nursing My DD I had a basket of new inexpensive toys to give to help him deal with the waiting. He could also sit by me during nursing and I would read a book.
There are lots of things he can do to help. Have him sing sweetly to the baby when she is getting her diaper changed or a bath. He can show the baby a picture book and teach the baby what everything is. He can push the stroller. I think you will be fine. Your a good Mom. Just enjoy it. Give up dusting for a while - it's worth it.
