She’s expecting her second child with screenwriter Jamie Linden.And it’s clear that Rachel McAdams has nailed maternity chic.The actress, 41, was spotted running some errands in Los Angeles on Tuesday wearing a pretty smock blouse and blue skinny jeans. The star of The Notebook and Spotlight added a loose-fitting tailored jacket and stepped out in leather sandals with buckles.Her long hair was loose and she covered up with a black cloth face mask. McAdams gave birth to her first child, a boy, in April 2018. Linden, 40, whom she’s been dating since 2016, is best known for writing the screenplays for 2006 movie We Are Marshall and 2010’s Dear John. Back in November 2018, McAdams described motherhood as ‘the greatest thing that’s ever happened to me.’In an interview with Britain’s The Sunday Times, she explained people had told her her life wouldn’t be her own anymore after having a child.She said: ‘I had 39 years of me, I was sick of me, I was so happy to put the focus on some oth …