Pregnant Serena Williams steps out in style as she makes her first public appearance since pregnancy announcement

Serena Williams recently revealed that she's expecting a baby, then at a recent interview she disclosed that she had made the announcement by accident. Just yesterday, the tennis champion and mom-to-be was spotted in public for the first time since her pregnancy announcement. She was attending the TED conference in Vancouver, Canada and for the event, the 35-year-old donned a smart,