Sarah Palin's daughter, Willow, 24, pregnant with twins: See her reaction! - AOL

Sarah Palin's family continues to grow.

The former Alaska Governor's daughter, Willow, 24, took to Instagram on Memorial Day to announce that she is pregnant with twins. The two forthcoming babies will be her first with husband, Ricky Bailey, who she married in September 2018.

"@rickyb901 and I are so excited to welcome TWO little babies into this world!" she wrote on Instagram. "Baby Bailey’s arriving December 2019 #TWINS."

The accompanying photo is a framed print that says, "and then there were four," and, "Baby Bailey's arriving December 2019," surrounded by two folded baby onesies, various plants and an ultrasound photo.

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Willow Palin on Instagram

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Sister Sister 👯‍♀️

matchy matchy for @piper.p’s first tattoo 🤣 #theluckyfewtattoo Thank you @mindy_fach_tattoo 😘

The most perfect day ❤️

Fresh face from @kelseymorris_professional and fresh extensions from @karimystrom 😍🙌🏼

It’s WEDDING WEEK! 🍾💍🥂 I’m going to enjoy every second of this crazy hectic week ❤️

Showered with love yesterday 💜 20 days #bailins2018

#Wickywedding #bailins2018

Happy 5 years 😘🍭🍦 @rickyb901

Reminiscing to our New York trip ❤️ Best trip ever!! Can’t wait to marry this kid 😍 #tbt #bailinwedding2018

🖤 thank you SO much @kateland.plumb.photography!

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Willow's mother commented on the post with a slew of celebratory emojis and said, "ECSTATIC & BLESSEDx2 !!"

Her older sister, former "Teen Mom OG" star Bristol, 28, is already a mother to three children: Tripp, 10, Sailor, 3, and Atlee, 2.

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Bristol Palin, Dakota Meyer and their family together

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last game of the season!! #champs

Happy Mother’s Day @bsmp2 Thank you for being a great mother and for providing me with a purpose in life that I could have never fathomed before our beautiful healthy children. #mothersday

Happy Easter! #family #thegreaterthepurposethegreatertheconflict #heisrisen🙏 #purpose

thankful for you ❤️

What matters

(Photo: Instagram)

Life is really good....

#throwbackthursday to last 4th Of July!

#throwbacktuesday to our Snow Trip with the Family.

#wcw ALWAYS to my beautiful wife Bristol

You only live once - but if you work it right, once is enough.

There is nothing better than the love of a good woman.

Family is not an important thing. It's everything.

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