I know, we spend months, even years, planning a wedding but hardly any time planning for birth.
I would say all mums to be should know the options available at the hospital they are attending (unless having a home birth of course!)
For eg. in some hospitals you are not allowed drink or eat during labour but in others you can
Some hospitals routinely break waters, others do not
Some have great VBAC (Vaginal birth after c-section) and some do not have any policy at all on it.
Its important to know what you want, make sure your hospital or midwife can support you and help you prepare for it.
Its a big day and planning it all part of the fun!!!