The 41-year-old took to Instagram on Sunday, February 21, to announce the news after his fiancée gave birth on February 15.
"Life is an ever evolving journey," Valderrama captioned a series of pics of the happy couple and their newborn baby in the hospital. "For all those times when our path needs a light.. often angels are sent to show us the way and that we can be more."
"Straight out of heaven we welcome our first daughter... #ItsJustUs3Now 02/15/2021,"
In the first pic, the family sat on the hospital bed while Valderrama held the baby in his arms and Pacheco leaned onto his shoulder. In the second snap, the new mom held her baby close and closed her eyes, and the final pic was a close up of their daughter.
Pacheco also shared the same snaps and caption on her own account.
"You made our world a little brighter mi angelita," Valderrama shared on his Instagram Story with a picture of his daughter which was followed by a "Girl Dad" key chain.
The pair kept their new daughter’s name to themselves but fans and famous friends left their well wishes in the comments.
"Ahhhhhhhh!!!!!! Im so happy for you both!!! Love u!" Eva Longoria commented.
"Ahhhhhh CONGRATS my friend!!!!!" Gabrielle Union gushed.
Valderrama popped the question in January 2020 and then the couple announced that they were expecting in December.
"#ItsJustUs3Now," Valderrama and Pacheco captioned their pregnancy announcement post which included photos of the pair posing against a cloud of colored smoke with Pacheco's baby bump on display. The phrase echoed Valderrama's engagement post which he captioned "It's just us now."
The happy couple was first linked in April 2019 after Valderrama split from long-time girlfriend Demi Lovato in 2016 after "almost 6 loving and wonderful years together."