Danielle Olivera is stepping into this summer as a new mom.

After all, the Summer House alum welcomed her first baby on Father's Day with boyfriend Eoin Heavey earlier than expected.

"Aidan Santos Heavey born June 21, 2026—10 weeks early—longest day of the year both solstice-wise and for mom and dad," Heavey wrote in third-person in a June 21 Instagram post. "He's heading to summer camp at NICU for the first 2/3 months in this world but mom and dad can't wait to bring him home hopefully soon."

"Dad was a nervous, terrified, sobbing mess," he admitted, "but couldn't ask for a better first Father's Day."

The tech entrepreneur—who began dating Olivera last spring—shared insight into the reality star's birthing journey.

"Fitting for his mum, Aidan translates to 'fiery one' or 'bringer of fire,'" Heavy explained. "She was nothing short of amazing after getting contractions at 10 p.m. on Friday, going to the emergency room at 3 a.m. in Southampton, then getting transferred by ambulance to Stony Brook for a further 24 hours."

For Olivera's part, despite Aidan's early arrival, she confirmed that she and their son are doing well. The In the City star reshared the post on her Instagram Story, writing, "Here early but safe and we couldn't be happier."

Olivera—who spent her summers alongside Kyle Cooke, Carl Radke, Lindsay Hubbard, Jesse Soloman, West Wilson and Amanda Batula before leaving Summer House in 2024 following seven seasons—previously reflected on the pace of her and Heavey's relationship.

"Eoin and I have been together for six months and living together. It's fast," she told producers in the May season one premiere of In the City, with Heavy chiming in, "It doesn't feel fast at all."

As Olivera put it, "Once you feel like that's it, you just fly headfirst in that direction."

As the couple embraces their latest chapter, keep reading for more celebs who recently welcomed a baby.

On June 11, the Dancing With the Stars alum announced she had given birth to her third child with her husband of 10 years.

"Baby boy is here," she captioned Instagram photos of herself holding the newborn in the hospital after her C-section, "and we are so grateful and so in love."

The Days of Our Lives alum and his wife welcomed their second baby together—a boy named Sebastian Antonio Barash—on June 5. 

"House is full," Barash—who also shares son Joaquin with Devoto and daughter Harper with ex-wife Kirsten Storms—wrote on Instagram. "Hearts fuller."

A baby has entered the villa! The Love Island UK couple announced on June 4 that they had welcomed their second baby together—a boy.

The "Big Mama" rapper welcomed her first baby, a girl, with the "Bank Account" artist. 

"There were tears and anxiety was through the roof," she noted about her pregnancy in an Apple Music interview published May 29. "It's what I wanted but I was just like, 'Wait, this real life, like am I really ready?' But ultimately, obviously had her and I'm glad I made the decision to do it."

The influencer and DJ welcomed baby girl Juliette July Fedyk on June 1, sharing that she was born early at 33 weeks.

"Suddenly the world just got a whole lot brighter," Madeleine posted to Instagram June 2. "06.01.2026 4lbs and 17.2 inches. We love you so much and are so proud to be your parents x."

The Laguna Beach alum and the NASCAR reporter announced the arrival of their first baby, Rhodes August Colletti, on Instagram May 14.

The Originals couple welcomed their first baby together—a son named Arlo Dominic Krueger—on May 3. King is also mom to two daughters with ex-husband Joe King.

The Good Charlotte rocker announced on May 4 that he and the Charlie's Angels actress—who share daughter Raddix and son Cardinal—have welcomed their third child together, a baby boy named Nautas Madden.

The Pitch Perfect alum announced May 4 that she and the fashion designer—who share daughter Royce—welcomed their second baby together, a little girl named Rose Estelle.

“Now on May 4th it’s now 4 of us!” she wrote on Instagram. “Ramona and I are feeling so incredibly grateful and blessed to grow our family, thank you everyone for all the well wishes.”

The couple confirmed the arrival of their second baby in an April 22 announcement. 

"Our sweet baby girl is here!! Pepper Jo," they wrote on Instagram, Allison adding, "One of the best days of our lives and the vbac [vaginal birth after cesarean] of my dreams!"

The Los Angeles Dodgers player and his wife expanded their team with the arrival of daughter London Rosemary Joy Freeman on April 19. 

Eddie Murphy confirmed to E! News that his son had welcomed a daughter named Ari Skye with Jasmin, who's dad is comedian Martin Lawrence.

"They just had a baby girl," he said in an April 18 interview. "They just had her two weeks ago, or a week ago."

The Running Point actor and the Paradise actress welcomed their first child, a baby boy. The couple announced on Instagram April 18, "He's here."

Nearly two years after calling off their divorce, the Blossom alum's wife gave birth to their second baby together. The couple named their son Ford Joseph Lawrence.

The Vampire Diaries alum and the model announced the arrival of their first child, Jack Wild Trevino, in a joint Instagram post on April 6.

Along with sharing their son's name, the couple—who tied the knot in June 2025—posted a black and white photo of their hands intertwined with their newborn's.

Paradise became a little bigger for the Bachelor Nation stars when their second child—a baby boy named Steven Jon—was born on April 5.

The former Masters tournament winner and his wife welcomed their second baby boy, Remy, March 27. The couple also share toddler Bennett, whom they welcomed in 2024. 

As Scheffler told the Golf Channel during the Masters tournament in April, “We had another boy a couple of weeks ago, and, yeah, it's been really nice and fun."

The Sinners star and NFL quarterback announced the birth of their first child together on April 2.

“Our baby girl has arrived!!” the couple wrote on Steinfeld's Beau Society Substack. “We’re feeling incredibly grateful and blessed and savouring these early moments. Thank you so much for the love and well wishes.” 

The "We Don't Talk Anymore" singer and his wife announced on March 23 that they had welcomed their first baby together, a baby boy named Jude.

The daughter of Lionel Richie and record executive welcomed their second baby together, Henry Cecil Grainge, on March 18. 

Richie announced the exciting news with a March 25 Instagram post featuring an adorable snap of their newborn with their daughter Eloise.

After announcing her pregnancy in November 2025, the "Call Me Maybe" singer confirmed she and her husband welcomed their first baby together in an Instagram Story March 17. 

The Bachelorette alum and his wife welcomed their first baby together on March 14.

"Our sweet Andie girl is here,” Ostapchuk captioned the couple’s March 17 joint Instagram post announcing their little one’s birth. “Born on Saturday afternoon, just hours before the biggest blizzard of the season—just as it was almost 40 years ago on Peter’s birthday.”

The Teen Mom alum, who shares son Lincoln with ex Kailyn Lowry, expanded his blended family when his wife gave birth to a baby boy.

"The best surprise of our lives," he and Marroquin—already parents to kids Eli and Maizee—wrote on Instagram March 11, "& the sweetest grand finale."

On March 12, the Vampire Diaries alum announced the birth of her first child—a baby boy—with her husband. Sharing her son's Shakespearean name, she wrote on Insatgram, "Welcome to the world Prospero 'Spero' Nyemah Wood."

The son of the late Ozzy Osbourne announced on Instagram that he and his wife welcomed their second daughter—his fifth—on March 5 and named her Ozzy Matilda Osbourne after the Black Sabbath frontman.

The "Lights" singer confirmed she and her boyfriend had welcomed their first baby together in March. 

As Goulding—who also shares son Arthur with ex Caspar Jopling—wrote in an Instagram Story, "We are totally obsessed with her.”

The Riverdale alum confirmed on March 9 that he had welcomed his first baby with the music video director, sharing photos of the newborn on Instagram.

The Duck Dynasty couple welcomed twin girls Sylvie and Francie on Feb. 24, bumping up their total of kids to five.

Counting on, indeed. The 19 Kids and Counting and his wife welcomed their third baby—a girl—in February. 

Ain't it funny how life changes? The country music star announced in late February that his wife gave birth to their fifth child, a baby boy named Brave Elijah Akins.