Wow, what an awesome effort!  I commend this Grandma for carrying 3 babies to 31 weeks.  Now I know that a natural birth was a far fetched idea, but at least it was mentioned.  It is amazing what family will do.  Good luck to the whole family.  One thing I do wonder about is if the babies will be receiving breastmilk, as it is so important for premature babies.  What do you think?