Tarek and Heather Rae El Moussa say their 'hearts are so happy' after welcoming their son

• Heather Rae El Moussa gave birth to her first child with Tarek El Moussa on Tuesday.
• The couple got pregnant naturally just before they were going to start IVF treatment.

Heather Rae and Tarek El Moussa have a newborn son.

In an Instagram post shared on Thursday, the couple announced that Heather had given birth to their first child together on Tuesday. They posted a photo of their son's torso with Heather and Tarek's hands wrapped around him.

"Our baby boy is here," they captioned the post.

"Mama & baby are happy, healthy, tired but doing well. Our hearts are so happy," they went on to write.

Heather and Tarek have been together since July 2019, when they met through mutual friends. They tied the knot in October 2021.

In January 2022, the El Moussas started the process of freezing Heather's eggs, as they anticipated they would need to do IVF to conceive, according to Today.

But in July 2022, Heather and Tarek announced they had gotten pregnant naturally and were expecting their first child in early 2023.

The El Moussa's new baby is Tarek's third child, as he shares Taylor, 12, and Brayden, 7, with his ex and "Flip or Flop" co-star Christina Hall. Hall has another son, Hudson, 3, with her ex Ant Anstead.

Heather has been vocal about her love of Taylor and Brayden since becoming a part of Tarek's life, sharing on Instagram in 2021 that she said vows to the children during their wedding.

"When your daddy and I decided to be fully committed, I was 100% committing myself to you too," Heather said she told the kids in her vows. "I am beyond honored to be your 'bonus' mommy. Thank you for allowing me to love your daddy with all my heart. I love you both more than you will ever know."

Tarek told US Weekly the thrill of fatherhood hasn't worn off for him with the birth of his third child.

"Becoming a father for the third time is just as exciting as it was the first time," he told US Weekly. "Our baby boy is doing amazing and Heather was a rockstar during labor."

He also said Taylor and Brayden were thrilled to meet their youngest sibling.

"I don't think I've ever seen Tay and Bray as happy as they were when they met their little brother," Tarek said.

Fans of the El Moussas will get a deeper look into their pregnancy journey through their upcoming docuseries on HGTV, "The Flipping El Moussas," which premieres on March 2.