The actress took to social media to share the first photo of her newborn son and revealed his name.
“Thank you 2020 for getting one thing right,” she wrote. “Our bright light Rhodes Robert Hedlund.”
Roberts welcomed her son with actor Garrett Hedlund last month.
In the interview she said she wasn’t sure she would be able to have children due to being diagnosed with endometriosis.
“When I found out about my fertility, I was kind of stunned,” she said. “It felt so permanent, and oddly, I felt like I had done something wrong.”