• Grey's Anatomy

Grey's Anatomy (Photo : Twitter/Grey'sAnatomy/ABC)

"Grey's Anatomy" alum Melissa George, 38, has been confirmed to be pregnant. Because of this, NBC has to move the release date of "Heartbreakers," the new medical drama starring the Australian actress and partner of French entrepreneur Jean-David Blanc, 47.

Originally, NBC announced that "Heartbreakers" will premiere before 2016. Now that the medical drama's release date has been postponed, the "Chicago Fire" spinoff "Chicago Med" will take its place on NBC on Tuesday nights, Entertainment Weekly has learned.

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George and Blanc already have a son together named Raphael Blanc, who was born on Feb. 6, 2014, People reported. They started dating after meeting at the BAFTA after-party in 2011. At the time, George starred in two TV mini-series. She appeared in 13 episodes of "The Slap" and in two episodes of "Bag Of Bones."

Prior to this, George played Dr. Sadie Harris in "Grey's Anatomy" from 2008 to 2009. In 2010, she appeared in three episodes of "Lie To Me" and starred in Jean-Claude Lord's TV movie "Second Chances" opposite Elle Dubin and Ryan Scott Greene.

In 2012, George appeared in 13 episodes of the TV series "Hunted" and from 2013 to 2014, she starred in "The Good Wife." She also starred in "Gothica" in 2013 with Janet Montgomery, Seth Gabel, Christopher Egan and Tom Ellis, among others.

Aside from the upcoming "Heartbreakers" medical drama, George is also set to star in the 2016 film "The Olive Sisters" based on Amanda Hampson's novel of the same name. The film stars George opposite Leslie Mann and Josh Lucas.