When Your Wife's Expanding!
This is the book my amazing husband is currently reading and it is hilarious! We pride ourselves in being a young and "happening" couple (though by calling us "happening" I may have just bumped us out of that category) (and how "happening" can you be really if you go to bed at 9:30pm on a Saturday?) And sometimes we feel like the majority of the books are very clinical - there is definitely a time for the clinical books on the dos and donts but with all of the awkward situations that are already popping up in my short 9ish weeks of pregnancy we definitely need something to laugh at.
I highly recommend this book, especially if your baby daddy doesn't have anything to read.  I think it is making him feel like part of the process. 
Re: What to Expect...