My parents have cancelled their holiday since finding out (it was a month long cruise) I feel awful, but its right around the due date and they want to be on hand to help with my other little terrors angels (plus I would not have ANYONE seeing the baby before them either so if baby arrived during that time we wouldn't be seeing friends etc or DH family)
At the birth it will just be me and DH (maybe 2 or 3 kids asleep upstairs in bed if at night, but mum will be on call incase we have to transfer in) otherwise kids will be with them.
Afterwards my little terrors angels will be shipped off for a day out with Nou Nou and Ampa (my mum and dad) so we can have lots of snuggles and some recovery time.
I wouldn't feel at all comfortable with a stranger around and guess I wouldn't of been after the birth of my 1st either, I do know ladies that have had maternity nurses or doulas and they raved about the experience and said the help and knowledge was invaluable, I guess for me I just like it to be us bonding with our new addition.
I also ban most visitors until I decide its ok, cant stand people just showing up.
I'm sure MIL and FIL will come for their obligatory visit (wont be allowed to hold baby as heavy smokers) then they will disappear into the night again (FIL came the day after DD was born and has never been back since) arse