Kailyn Lowry's family just got a little bigger.
On Monday, Aug. 3, E! News exclusively confirmed that the Teen Mom 2 star welcomed her fourth child into the world.
The MTV personality said her newborn arrived at home on July 30 at 2:47 p.m. local time. He was 8 lbs., 15 oz. and 22.5 inches long. "No name yet but we are all healthy and so in love," Kailyn revealed to E! News. "I can check giving birth during a pandemic off my bucket list now."
Kailyn's baby announcement came the same day that MTV announced the return of Teen Mom 2. According to the network, the new season will document Kailyn's pregnancy as she deals "with endless rumors and surprises, including her estranged mother resurfacing."
While fans wait to hear the name of Kailyn's fourth child, we decided to take a look back at some of the MTV star's best family moments with her sons Isaac, 10, Lincoln, 6 and Lux, 2.
From first day of school celebrations to summer vacations, see just some of the happy family memories in the gallery below.
Growing Family
In Jan. 2010, Teen Mom star Kailyn Lowry gave birth to her first child, Isaac, with her then boyfriend Jo Rivera. Two years later, after Kailyn and Jo called it quits, she tied the knot with Javi Marroquin and the couple welcomed son Lincoln the following year. By July 2017, Kailyn and Javi had finalized their divorce and she was getting ready to welcome a third son, Lux, with Chris Lopez.
After's Lux's arrival in Aug. 2017, Kailyn and her trio enjoyed some fall festivities.
The kids went all out for Halloween 2017.
"This is what our Saturdays look like," she captioned the 2017 pic.
They took some time to kick back and relax during a trip to Jamaica in 2018.
Isaac, Lincoln and even Lux channeled their inner superheroes for Halloween 2018.
"Art show with my babies!!" Kailyn captioned the 2018 photo.
Isaac gave his mom a sweet smooch on the cheek in this 2018 snap.
"First day back for all the kids," Kailyn wrote alongside a family photo in 2019. "4th, kindergarten & preschool!"
"We made it through the chaos of @theluxrussell's first art show & @thelincmarshall's last!" she shared in 2019. "So many cute projects & a sign that we've hit yet another milestone. Next stop for Lincoln, KINDERGARTEN! One day, all the kids will focus & smile for a photo."
Family Love
In July 2020, Kailyn gave birth to baby Creed, her second son with Chris. Three years later, in July 2023, the reality star confirmed she'd privately welcomed a fifth child, a son named Rio, with boyfriend Elijah Scott. By early January, Kailyn announced that she gave birth to her and Elijah's twins, a boy and a girl.
Red Carpet Ready
Kailyn appears with sons Isaac, Lincoln and Lux at the 2023 Webby Awards.
The Boys
Kailyn's five eldest sons Isaac, Lincoln, Lux, Creed, and Rio appear together in November 2023.
Meet the Twins
Kailyn holds her and Elijah Scott's twins, son Verse and daughter Valley, as seen in a photo she shared in January 2024.
A new season of Teen Mom 2 with Kailyn kicks off September 1 at 8 p.m. on MTV.