Josh and Anna Duggar are now counting four kids in the family as the former TLC reality series stars welcomed their daughter Meredith Grace Duggar.

Taking to social media, Josh posted the arrival of their newborn on Twitter, including a close-up of her face. She weighed in at 7 lbs., 14 oz. and 20.5 inches long.

The Duggar family, including Josh’s parents Jim Bob and Michelle, also shared a video about Meredith's arrival.

The latest addition to the Duggar family joins older siblings including 2-year-old Marcus, 4-year-old Michael and 5-yer-old Mackynzie, who is said to be greatly thrilled about the arrival of her little sister.

"Mackynzie made a recording saying, 'Hi, little sister, it is so great to meet you, you are already my best friend,' " Anna said in an interview with PEOPLE in March following the announcement of their child’s gender.

A baby cousin will be arriving soon as well; Josh's sister, Jessa Duggar-Seewald, is also expecting her first-born.

Anna, who had gone into labor past her due date, shared a photo in Instagram as she posed with Jessa last Sunday and compared baby bumps with each other.

While nearing the end of her second trimester, Jessa also took to social media and shared a photo on Twitter to show her growing baby bump.

"At #22Weeks, #BabySeewald now weighs just over a pound!" the 22-year-old reality star wrote earlier this month.

The mother-to-be also opened up about her experience in reaching her 20th week of pregnancy on the blog that she shares with Ben with the following update: "Baby Seewald is growing steadily and Mommy has been feeling some little, yet strong, kicks!"

The parents-to-be also added: "We recently had an ultrasound, but aren't revealing our firstborn's gender yet. Can't wait to welcome this blessing from God into the world!"

Amidst the news of Duggar babies, Jim Bob and Michelle’s niece Amy shared her big news on Instagram and announced that she is engaged to her boyfriend Dillon King.

On her social media post, cousin Amy shared a photo of her holding hands with Dillon with a new accessory easily seen on her left hand: a shimmering, oval-shaped engagement ring.

"I'm so happy to announce ... WE ARE ENGAGED!!!! He loves the Lord, he makes me laugh uncontrollably, he's loyal, he's patient, he's my best friend! Of course I said yes!! l love you so much! @kingdillpickle #DillandDuggsforever," she captioned the photo.

On the whole, while the family’s TLC show, ‘19 Kids and Counting,’ was cancelled recently, these couples are expected to not stop counting their blessings.

"It's definitely busier the more [kids] you have," Anna told PEOPLE last year. "But it is a happy busy. There is no better way to invest my life, my body, and my time than to my children. They are a huge responsibility and a blessing. And all good things in life require work."