Congratulations is in order for new mum, Rachel McAdams.
According to Hollywood Pipeline and E!, The Games Night actress has welcomed a baby boy after keeping very low profile throughout her pregnancy.
No other details, including the babies name, have been released yet.
Rachel and her boyfriend/baby daddy Jamie Linder were spotted out and about in Hollywood with their new addition. Adorable pictures show new dad Jamie holding and gazing in wonder at their teeny son.
There has been no comment made by a rep for Rachel or Jamie about the birth.
Rachel McAdams hasn't been photographed in public since the fall, and Life & Style exclusively learned why she's kept such a low profile lately.
The Game Night star is heavily pregnant with her first child, according to an eyewitness who recently spotted the actress sporting a noticeable baby bump.
The actress and her boyfriend, screenwriter Jamie Linden, were out to dinner at Staplehouse in Atlanta on Feb. 13, and "she looked to be at least seven months pregnant!" a fellow diner tells Life & Style.
A dressed-down Rachel, 39, and Jamie, 37, revealed their secret to a friendly stranger at the restaurant.
Jamie, who previously dated actress Zooey Deschanel, has been linked to Rachel since April 2016. "They were a low-key couple and not outwardly affectionate" during their dinner date, says the eyewitness, who adds that Rachel was "positively glowing."
Last year, a source told Hollywood Life that the couple was ready to take their relationship to the next level. "Rachel is ready to settle down and start a family," the source revealed shortly before the couple moved in together.
"She can't wait to start the rest of her life with Jamie... No one's ever made [Rachel] feel this way. Jamie's stolen her heart."
The Mean Girls actress was most notably linked to her The Notebook co-star, Ryan Gosling, from 2005 to 2007.
Fans rooted for the ill-fated couple after their emotional performance in the Nicholas Sparks film. But, since their split Ryan and Rachel have both moved on (and started families!) The 37-year-old actor shares two daughters with Eva Mendes.
Maybe he can give her parenting tips!