HotI, I would go for a back up midwife just in case. You don't want your only midwife to be coughing up a lung over your newborn or being called away for some reason when you need her.
I have had my last two appointments with the alternate midwife JIC she is rostered on for the birth - they do 4 on/4 off roster.

I think everything is set now, just waiting for baby to come. The birthing pool is set up, it is massive! I had a chat to the midwife today about being left alone because last time I found it really hard to come out of my little world to bother talking to other people and she is happy just to leave me to it.