So, while all the kids were playing and running amuck at the Hallowe’en party on Saturday, all the adults sat around the dining room table and had a good chat. We were all involved in smaller, separate conversations at one point, but I tuned into another conversation when I heard one friend ask another, “So, is two it then?” I half listened for a minute before joining in, and they were all discussing the sizes of their families and whether or not they were done having more children. It’s something that I am asked all the time, both by good friends and by total strangers that I’ve just met. Once…