Funny? What do you mean by funny? There really aren't many maternity patterns, but if you are experienced you could probably alter some for expansion.
Here's are some books with patterns for mom and baby.
http://www.amazon.com/Knitting-Two-D.../dp/0823026132
This one is out of print, but they have used.
http://www.amazon.com/Baby-Bloom-Eri...7453616&sr=8-6