For a while I desperately wanted another baby but DH didn't. I was really angry with him at the time but now in retrospect I'm very grateful he stuck to his guns. It took me a while to get there but now I really do feel like our family is complete. I would be horrified if I got pregnant again.
That said, I'm not a very maternal person and I never had a pre-conceived notion about what shape of family I wanted in fact until well into my first pregnancy I wasn't even sure that I did want children.