I was thinking that having a child at 40 years old was a little on the old side. but after seeing this
http://news.bbc.co.uk/2/hi/health/5160812.stmI am starting to think that having a kid at 40 in not so bad, considering people are on average living longer than they used to.
I'm not sure I could imagine being that old and having to get up to feed of sooth the kid. although if you're up going to the toilet every few hours you might as well try and get the kid on your schedule.