Johnny Galecki is starting this year off with a bang.

The Big Bang Theory alum revealed in an article for Architectural Digest's March issue that he privately married Morgan Galecki and that they've welcomed a daughter named Oona Evelena.

While the dates of the couple's wedding and baby's birth were not disclosed, the magazine noted Johnny and Morgan were still waiting for the little one to make her debut at the time of the photoshoot and that she was born "soon after." 

In fact, one of the pictures gave fans a look at the nursery in the pair's Nashville home—which AD shared featured a gold-painted cabin bed, tapestry-like wallpaper, antique Persian rug and large toy bunny. 

Thanking the Architectural Digest team on Instagram for the "lovely profile on the beautiful backdrop of our lives as they stand and smile today," Johnny wrote, "We will place it in our family time capsule and cherish it for many, many years."

Oona joins big brother Orbison, whom Johnny welcomed with his ex Alaina Meyer in November 2019 before news of their split broke the following year.

And while the actor has mostly kept his relationship with Morgan out of the spotlight, he has given his Instagram followers a few glimpses into their life together—such as by posting a picture of them at Disney World with Orbison last month.

However, this may not come as a huge surprise as Johnny has largely stayed out of the public eye following the end of The Big Bang Theory in 2019.

"I think this is the first interview I've agreed to do in almost four years," he told AD before going on to praise his design team, "and it's purely because I'm excited to rave about Emily [Ward] and Louisa [Pierce]."

To see more stars who've recently grown their families, keep reading.

In his first interview in years, The Big Bang Theory actor revealed to Architectural Digest he’s now married and that he and his wife welcomed baby girl Oona Evelena.

The Bachelor Nation alum and his fiancée welcomed baby girl River Rose Viall Feb. 2: "Named after Natalie's great grandmother and niece…the best part of life starts now."

The Big Brother alum gave birth to twin girls Sage Martin Murphy and Sela James Murphy in January, she exclusively told E! News. 

"Since my wife, Jamie and the girls took my last name, we wanted to honor Jamie's full birth name in both of their names," Christie explained. "'James' after Jamie and 'Martin' after her maiden name. It feels special and right!"

Two years after the death of his baby girl, The Challenge alum welcomed a son with a friend he had been romantically involved with.

"Aliyas Diamond Cain - 16.01.24, 4:32am, 9lbs 3oz," he wrote. "I will love you, appreciate you, guide you and protect you with all of my heart, for the rest of my life. & you will have the most beautiful guardian angel heaven holds watching over you and protecting you too." 

The Bachelor alum welcomed her third baby, her first with her husband, in late January.

"She's finally here," she wrote on Instagram at the time, noting they named the little one Rosie. "1.24.24 at 1:40pm in room 42."

Their baby girl joins big sisters Kinsley, 11, and Charlie, 10, who Amanda shares with ex-husband Nick Buonfiglio.

Nico Michael Phelps entered the world on Jan. 16, joining his three older brothers Boomer, 7, Beckett, 5, and Maverick, 4.

The Teen Mom 2 star officially became a mom of seven after she welcomed a baby boy and a baby girl with boyfriend Elijah Scott in January.

The YouTube couple welcomed a baby boy in January.

"our little guy arrived last week and everyone is happy and healthy," they wrote on Instagram Jan. 21. "we feel like the luckiest people in the world. we love you, Otis."

Alongside a black-and-white photo of their baby's feet, the actor and former Miss World America winner announced the arrival of their first baby together, Shepherd Lawrence Duhamel.

Josh is also dad to son Axl, born in 2013, with ex Fergie.

"Our worlds have been forever changed," the couple wrote on Instagram Jan. 10, announcing the arrival of their daughter Ella Reine Palmer. "Our hearts are overflowing with love and gratitude."

The Bachelorette alum and her husband welcomed a baby girl via surrogate, Clare announced Jan. 15.

The Luxembourg royal family welcomed their third child on Jan. 7, a baby boy named Balthasar Felix Karl. “He weighs 3,220 kg [7.1 lbs.] and measures 50 cm,” or 7 lbs, 1 oz. and 19.7 inches," a birth annoucement note. “Prince Balthazar and Princess Claire are in perfect health."

The TikToker and her husband welcomed daughter Piper Presley Bogan Jan. 15, two years after Cassidy experienced a miscarriage with daughter Phoebe. Now, mom can't wait to watch oldest daughter Lucy "be a big sister," she told People, "and to watch the bond form between the two!"