Kylie,
Everyone is so individual in the pain they can tolerate or want to tolerate so it is really hard to give advice on that type of thing. My opinion is that it does not always pay to be too planned as sometimes the plans don't work and then we are disappointed. Best to be flexible. But it does sound like you do need some more information about pain relief options - perhaps ask at your next appointment.
By the way, I live 20 minutes from you - where are you going to deliver? I went to Box Hill which was great.