From pregnancies to rehab reveals, it's been another wild week in the celebrity world. In case you've been out of the loop -- or perhaps waiting in line for "The Hunger Games" movie tickets -- we've rounded up some stories you may have missed. Reese Witherspoon is pregnant. Though the actress has not officially announced the happy news, several sources close to the actress spilled the beans to outlets including Us Weekly and People. This will be the first child for Witherspoon and her husband...