I read Belly Laughs a few months ago and it was really good! I actually laughed out loud a few times, FFI was curious why so I shared a few of the stories with him! lol
I'm not even trying to get pregnant yet, but I went to the library the other night and gotl ike 8 books on pregnancy & childbirth. I don't remember the names of all of them but here are a few:
Pregnancy & Birth, Your Questions Answered
The Complete Idiot's Guide to Natural Childbirth
The Pregnancy Bible
I really like The Pregnancy Bible so far. It is SO informative and goes into great detail. There are a lot of interesting little tidbits too like the fact that sperm swim at an average speed of 16 mph! :)