The couple went to lunch on Saturday in Los Angeles when the actress was photographed in a tight, gray t-shirt that exposed her growing baby bump.
Back in November, the 29-year-old revealed in an interview with Nylon her plans for the future after she turns the big 3-0.
"Most people I know are starting to get married. It'll be kids next. I like the grown-up stuff. I like having a house. I've got dogs," she said.
The couple, who met on the set of The Oranges in 2011 and later co-starred again in 2014's Life Partners, have not yet released a statement about their pregnancy. They wed in early 2014 in a secret ceremony.