An announcement for Labor Day (or it just happened to fall on it), John McCain's VP running mate Sarah Palin said that her daughter Bristol Palin, 17, is five months pregnant. Palin most recently gave birth to her down syndrome son Trig in April, but rumors spread on the internet that it was actually Bristol's. Today's announcement was in effort to debunk that rumor. Sarah and Todd Palin said they were proud of Bristol's decision......