She is the sister of Joshua Duggar, Jana Duggar, John-David Duggar, Jill Dillard, Jessa Seewald, Jinger Vuolo, Joseph Duggar, Josiah Duggar, Jedidiah Duggar, Jeremiah Duggar, Jason Duggar, James Duggar, Justin Duggar, Jackson Duggar, Johannah Duggar, Jennifer Duggar, Jordyn-Grace Duggar, and Josie Duggar.
Being born in the midst of eight boys, Joy-Anna was said to be a tomboy growing up. She was more likely to be found playing outside and roughhousing with her brothers, than doing more the typically feminine activities her parents encouraged. She was especially close to her brother Josiah as a child.
Joy-Anna was homeschooled growing up. She took the test to get her GED in 2016, at eighteen years old, alongside her brothers Jedidiah and Jeremiah. Her family had a graduation party to celebrate this event.
Like most children, Joy-Anna was assigned chores growing up, which the family called "jurisdictions". As of 2004, Joy-Anna's jurisdiction was laundry, alongside her sister Jill. As of 2011, Joy-Anna's jurisdiction was cleaning the girl's room. It is likely that Joy-Anna was relieved of her jurisdictions when she began her courtship, as her older sisters had been when beginning their courtships.
By 2001, Joy-Anna's parents had implemented a buddy system, where each older child was paired with a younger child to take care of. Typical tasks for an older buddy included dressing, bathing, and feeding their younger buddies. From the earliest implementations of this system, Joy-Anna was shown as the younger buddy of her sister Jill. By 2009, the family had switched from individual buddies to buddy teams, with each team being led by one of the oldest four daughters. Joy-Anna remained with her sister Jill in this system, and their team also consisted of younger siblings James and Jennifer. This team has been shown to still maintain a strong bond today. When Jill got married in 2014, Joy-Anna took over as the head of the buddy team.
Joy-Anna took piano lessons as a child, but it is unknown if these lessons were from the family's first piano teacher, Ruth Anita Anderson, or if her older siblings had taken over with the lessons by the time she was old enough to learn. Joy-Anna also took violin lessons as a child.
In 2006, as featured on one of the TV specials, Joy-Anna and her family moved into a new home in Springdale, Arkansas. The family made a point of doing much of the work on the house themselves, seeing it as a learning opportunity for their children. In this house, Joy-Anna was given a dormitory-style room with her sisters.
In late 2009, after her sister Josie was born premature, Joy-Anna moved with her family into the Cornish house in Little Rock, Arkansas, to be closer to the Arkansas Children's Hospital. Once Josie was healthy enough to leave the Neonatal Intensive Care Unit (NICU), Joy-Anna and her family moved back home.
In 2010, Joy-Anna was an extra in the film Courageous, which was released on September 30, 2011. She is seen in the film attending a young girl's funeral. When the scene was filmed, her family expressed surprise that Joy-Anna was able to cry real tears for a fictional death.
Thanks to the reality show, Joy-Anna was able to take a number of vacations as a child and teenager. Notable vacation locations include Disneyland, New York City, Niagara Falls, Scotland, Ireland, London, Israel, China, and Japan.
On November 15, 2016, Joy-Anna announced that she was in a courtship with long-time friend Austin Forsyth. The couple said that they had been friends for almost fifteen years, although Joy-Anna later said that she didn't remember him as a child. Austin took Joy-Anna out to a special spot in a nearby forest to ask her to court him, and she enthusiastically said yes. The courtship proposal is featured on the Counting On episode "A Honeymoon & a Courtship".
On March 3, 2017, the couple announced that they were engaged. The couple got engaged on March 2, 2017. Austin took Joy-Anna, along with her sisters Johannah and Jennifer, horseback riding before leading her to a cliffside where he proposed to her. He then took her to a clearing where he and a friend had set up a table to eat a special meal he had prepared for her. Joy-Anna said that she didn't expect that proposal at the moment because she didn't see any TV cameras there to film, but they were hiding in nearby trees and bushes to help make the moment more special. This proposal is featured on the Counting On episode "Joy Gets Engaged".
On May 26, 2017, Joy-Anna married Austin Martyn Forsyth at Cross Church in Rogers, Arkansas. The couple shared their first kiss in front of nearly 1000 wedding guests. Joy-Anna's matron of honor was her sister Jill. She had eleven other bridesmaids, including her sisters Jana, Jessa, Jinger, Johannah, and Jennifer, sister-in-law Anna, future sister-in-law and friend Kendra, Austin's sister Meagan Ballinger, and friends Sierra Jo Dominguez, Carlin Bates, and Heidi Query. Her future niece Allove Tunstill was her flower girl.
Joy-Anna and Austin went to Switzerland for their honeymoon, starting in Geneva and later traveling to Interlaken and Zermatt. "We chose Switzerland because we knew that it was very beautiful," Joy explained in an interview. "We had seen a lot of pictures and Austin has really wanted to come here for awhile." After their honeymoon, the couple almost immediately went on a mission trip to Israel.
On August 30, 2017, Joy-Anna and Austin announced they were expecting their first child. On February 26, 2018, Joy-Anna and Austin announced that their son, Gideon Martyn, had been born at 3:39 pm on February 23, 2018. He weighed 10 pounds and 3 ounces.
On May 1, 2019, Joy-Anna and Austin announced that they were expecting what would have been their second child, due on November 6, 2019. On June 26, 2019, at their 20-week scan, they learned that they suffered a miscarriage, and that their baby no longer had a heartbeat. Their child was a girl and they chose to name her Annabell Elise. Annabell means "God has favored me", and Elise means "God satisfies". Joy delivered Annabell on July 1, 2019. On June 26, 2020, she posted a photo on Instagram memorializing that it had been a year since they miscarried their daughter.
On March 18, 2020, Joy-Anna and Austin announced that they were expecting their second child, a girl. The baby was due on August 19, 2020. On August 24, 2020, Joy-Anna and Austin announced that their daughter had been born at 2:12 pm on August 21, 2020. She weighed 8 pounds, 5 ounces, and measured 19 ½ inches. On August 27, 2020, they revealed her name to be Evelyn Mae.
During a 'Q&A' on Instagram, Joy revealed that both she and Austin had tested positive for Covid-19 while she was pregnant with Evelyn. They experienced body aches, fever, and lost their sense of smell and taste. Both had a quick recovery.
It is assumed that Joy is currently working at Fort Rock Family Camp, which is owned by her in-laws.
On May 19, 2015, InTouch Weekly published a redacted copy of a police report dated December 7, 2006. The report revealed that Joy-Anna's oldest brother, Joshua, had molested five underaged girls, including four of his sisters, in 2002 and 2003.
On May 19, 2017, Joy-Anna and three of her sisters sued InTouch Weekly, Springdale, Arkansas, and Washington County, Arkansas for breach of privacy. The four women claim they were promised confidentiality when speaking to investigators in 2006. By doing so, Joy-Anna publicly named herself as one of Josh's victims. Joy was five/six years old at the time of the molestations. Unlike her sisters Jill and Jessa, she has never spoken publicly about the molestations.