This must be your first, if so just think of all the things you wife has to learn, I would hazzard a guess that it wasn't the first time that your wife became pregnant, it took time to learn. This is also a new thing for her. Inbetween times while you are waiting get as much sleep as you can, you will be missing a lot after the baby arrives.
Tis the second!! We have learned a lot but I have the feeling we are going to have to learn it all over again :0)
I still advise "get all the sleep you can, while you can.
I have been doing my best!