Anna and Josh Duggar became parents for the fourth time on Sunday, July 19, and the 27-year-old reality TV star announced the good news on social media on the same day. 

"Announcing the arrival of Meredith Grace Duggar!" Josh tweeted, posting a photo of the couple with their newest addition. "7 lbs 14 ozs, 20-1/2in- Anna and Meredith are resting & doing well!"

The couple's new daughter joins her three older siblings: Mackynzie, 5; Michael, 4; and Marcus, 2. Josh and Anna shared a close-up shot of the baby. 

Jim Bob and Michelle Duggar also shared a video welcoming the arrival of their latest grandchild on their official website. In the video, the proud grandparents are in the living room of their Arkansas home. 

"Anna did an amazing job through labor," Michelle said. "We are just rejoicing with Josh and Anna. Meredith Grace is beautiful and Mackynzie, Michael, and Marcus are just loving having their little sister here." 

Anna and Josh married in 2008. The couple announced the pregnancy last December, and confirmed that they were having a baby girl four months later. Meredith is Jim Bob and Michelle's fifth grandchild, and is the first of Anna and Josh's four children not to have had her birth documented on camera for the reality series, "19 Kids and Counting."

On Thursday, July 16, TLC announced that it was officially cancelling the show. The announcement came more than a month after the acts of molestation committed by Josh during his teenage years came to light. The father of four has been keeping a low profile on social media since the scandal was initially reported by InTouch magazine back in May, and the new Twitter and Instagram posts are the first he has posted in weeks. He last posted a picture of himself three weeks ago during Anna's birthday.