Newy,
Did all her 'exercises' ha!!!!!
I would reply with something along the lines of:
"Wow, congratulations to her, I do hope the baby is doing well and she finds motherhood as easy as her labour, I have lots of newborn clothes that I never got to use on XX as he was so big, if you would like them please let me know"
but then agian, this is a bug bear of mine - you can do all the 'prep' in the world - and no one can tell you what your labour is going to be like.
Everyone is different and its certainly not down to how well you 'cope' as to whether you have an Epidural etc, everyones 'pain' is different and affects ppl in different ways.
The babies position has a big part to play in this, and if the head is slightly flexed, a larger part of the head is coming out first - and no one can do anything to change that as the first sign is when the heads nearly out.
p.s. i had a 3rd deg tear with my ds1 5lb 12oz, and with ds2 not a graze, he was just under 8lb.
xxx