Why Does Trig Matter? Ctd

A reader writes:

Just to add to the chorus of mothers not believing the birth story: when I was pregnant, I remember my obstetrician telling me she might have to duck out of my scheduled appointment at any time because one of her patients who was pregnant with her third child was in labor, and that third babies "just sort of fall out."  Labor with each child is progressively shorter, statistically.  Especially after the water breaks.  I can only imagine how fast the labor is for fifth babies...