The Bright Side of Disaster,by Katherine Center, published by Ballantine Books, 2008 Opening the cover of The Bright Side of Disaster, by Katherine Center is like answering a phone call from your best friend; you don't necessarily intend to spend half the night gabbing, but the more you hear, the harder it is to hang up. Enter Jenny, engaged to Mr. No-Where-Near-Wonderful, and unexpectedly pregnant. She is exuberant about…