I am not much of a poet, but a fun play on sterotypes could be a silly announcement. "Over the Hill is much more fun with a new set of wheels" then pull out a baby stroller - heck, even lead everyone out to the garage and have a bow on the stroller with a "Due in MONTH" sign.
A Riddle of Numbers (title)
When we grow
There are things we know
like one plus one is two
But what do you get when one is almost 41 and the other is 42?
Well, multiply by 9 and the answer we get is one.
"One?" you say."That can't be right?" But it is.
One new precious baby brother,sister,aunt or uncle just from us to you!
Ok That was pretty bad, but maybe you can edit it to read more eloquently.
CONGRATULATIONS!!!