Actually common birthdays are not that unusual in my family. My uncle and my mother have the same birthday(2yrs apart). My brother and sister (1yr apart). My uncle and my father and my grandmother (10yrs and 40yrs respectively). My girls had the same due date, but my younger daughter decided to try to come five weeks early and ended up 8 days early. Oh and my aunt and her daughter and the same cousin had twins on their birthday. So for me it was a huge disappointment to miss the same thing with my girls. I hope it does end up on the same day it makes it easy to plan one huge party then two close together.