Don't choose 1 week before, 9 weeks after. It is not so good for BB and you. Because you must be taken more rest, if Mummy very tired, BB cannot growth up and fat more. Then you must prepare everthing to go to hospital for first born BB.
If you want to see the Baby more times, you can choose 2 wks and 8 wks. It is the better. It cannot take a long holidays, you will not return back to the job and miss your BB mcuh.