How do you know when you are done having children?

I think everyone is different. Some women say that they do not wnat anymore children when they are pregnant, because they are so worn out, and they just dont think they want to have anymore. Some women know they only want X amount of children. I have one boy, and I said I didnt want anymore children. But... It comes down to it, I do, 5 years later. And now I cant LOL. But again everyone is different. I really think most people who are pregnant say they dont want anymore. Especially when they are in labor, but after awhile they do.

I only have one kid right now and I know I'm not done yet. I hope other posters can help you out :)