• Camilla Luddington shares 'Grey's Groufie' on Twitter

Camilla Luddington shares 'Grey's Groufie' on Twitter (Photo : Camilla Luddington via Twitter)

"Grey's Anatomy" season 12 cast member Jessica Capshaw recently announced that she's pregnant with her fourth child.

Capshaw confirmed the news via her Instagram account over the weekend.

The actress posted a photo of herself with her husband and three children.

"The holidays have certainly arrived... All of our lives are being added to by the lights, music and the cheer!! This year our family has reason to further broaden our smile... Baby number four is on the way!! I am a lucky, lucky girl," she wrote.

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Meanwhile, Capshaw's fans have been commenting positively on the actress photo.

Instagram user @karinna.marie wrote, "My heart is breaking."

Another fan @clarrpatta wrote, "Wow congratulations @jessicacapshaw don't know how you do it. One's enough for me. Mamma of the year goes to you."

Instagram user @gabilukens.jpg wrote, "omg her real life fam is perfect.

In other news, fans couldn't also help but wonder how Capshaw's pregnancy will be played out on "Grey's Anatomy" season 12.

As of late, the show is on hiatus and the cast members have already filmed some of the episodes for the second half of the season, according to TV Guide.

On the show, Capshaw plays the role of Arizona, who just got out of her long-term marriage to Callie (Sara Ramirez). At present, she is single and looking for love so it's quite difficult to imagine how she could get pregnant.

Still, there are a lot of ways on how "Grey's Anatomy" can cover up the actress' baby bump if it will start showing.

"Grey's Anatomy" season 12 will return to ABC on Feb. 11, 2016.