revisiting the c-section question

I chatted with a friend on Sunday and it's brought a lot of worries back
to the surface. I think she feels a that I'm a bit too relaxed about
just seeing how things go and really fears that I may injure myself
during birth.

I've basically been working on the principle that I'll get warning and
can take appropriate action, but I realise this may be partially flawed.
After my first birth, my pelvis and hips were very unstable for a few
days, which nearly resulted in some interesting falls and whilst I was
in hospital I was basically confined to bed as I couldn't safely get
anyway.

This will be a third birth, not a first birth, my ligaments and muscles
will be in a different state to how they were then. Also that birth was
not of a physically normal baby, IUGR meant his fontanelles were
significantly enlarged, which probably meant an awful lot more head
molding than average occurred.

All of which means I'm back in the groove of worrying that perhaps 3rd
baby, plus the injuries of 2nd time around, plus a normal baby
(hopefully), could turn out to be too much, even if I am feeling tip top
in the run up to the birth!

But unfortunately it seems like that is an unanswerable question and
I've really no idea how to approach resolving that.

Cheers
Anne