On Tuesday, Blake Lively [1] got to work on the LA set of The Shallows, her new thriller about sharks [2]. Blake's day on set would normally be pretty run-of-the-mill, but since news broke on Thursday that she's expecting her second child [3] with husband Ryan Reynolds [4], consider us intrigued. The actress is noticeably covering her baby bump in the photos, using a robe to block the view. Even so, it's possible to pick out the slightest hint of her new baby bump. It's been a little over a year since the pair welcomed their daughter James [5] into the world, and we most recently spotted them lighting up the White House State Dinner [6]. Keep reading to see more pics from Blake's day on set, then check out Blake and Ryan's cutest couple moments [7].