Sorry if my comment upset you Greydore, definately wasn't my intention. In hindsight it doesn't read very well and I am pleased Atomic clarified the poor quality of the questioning/research in that article too.
What I was trying to get at in my original post, though not very well, was my fear that in my particular family having a third baby may unsettle things. My girls already bring me so much happiness I don't know why I feel like I want to mess with a good thing.