Pregnant Reese Witherspoon went for a jog in Brentwood with a friend today, tying a jacket above her growing baby bump. The actress, who is expecting her third child, is back in LA after a family vacation to Costa Rica earlier this month. She and husband Jim Toth took Reese's children, Ava and Deacon Phillippe, along for the beachside getaway, where Reese showed off her new figure in a swimsuit. The baby will be her first with Jim, whom she married last March. Reese has been taking a break from work to spend time with her new husband and prep for their new addition, most recently appearing on the big screen in This Means War, but still has plenty of projects in play. Her already-completed movie Mud, which costars Matthew McConaughey, is expected to hit theaters this year. Beyond that, Reese is linked to nearly a dozen possible future projects as either a star or producer.