Did anything in particular make you change your plans/minds? I've got two lovely dc (dd 4.5, ds 14 months), and goddamit, I think I'm feeling the urge to have no. 3! Totally taken me by surprise as I was never really that keen on having children in the first place.
We probably won't have another (far too many reasons why to list) and I don't think I live to regret it or anything, but I'm just curious how and why other peoples plans have changed when it came to having a certain number of children.