Kaley Cuoco and fiancé Tom Pelphrey’s second child has arrived.

The “Big Bang Theory” alum gave birth to baby No. 2, a girl named Philomena Carmine Bobby, on Monday, three years after welcoming daughter Matilda.

“There are no words to describe this feeling once again,” Cuoco, 40, wrote on Instagram Wednesday, alongside photos of the couple with their newborn daughter.

Kaley Cuoco gave birth to her second child (seen above) on Monday, Oct. 12. Instagram/kaleycuocoCuoco revealed her and fiancé Tom Pelphrey had another daughter, named Philomena Carmine Bobby. Instagram/kaleycuocoCuoco (seen here with her baby) announced the exciting news on Instagram on Wednesday. Instagram/kaleycuoco

“What a blessing,” she continued. “We are so grateful for the crazy wild up and down journey that brought us to our little Philo! Family officially complete 😭Time to bring Matilda’s baby home! 😂💕.”

Cuoco also wrote that Pelphrey’s “life exploded the minute we met, and the gifts keep coming.”

“I love you forever, girl daddy,” she concluded her post.

The actress announced her pregnancy news — and the little one’s sex — in a June Instagram post.

Cuoco called her second daughter’s birth “a blessing” (Pelphrey is seen here with Philomena). Instagram/kaleycuocoCuoco (pictured above) told fans that her “family is officially complete.” Instagram/kaleycuocoCuoco also called Pelphrey (both pictured above) a “girl daddy.” Instagram/kaleycuoco

“completing our little family , what a dream come true ! 💖” Cuoco captioned the social media upload at the time.

“This second time around journey has been a little windier in many ways, but wow we are so grateful for this moment!!” she continued. “Little sissy on the way!!!”

The “Flight Attendant” star concluded by dubbing her partner a “girl dad for life.”

The “Big Bang Theory” alum (pictured above in June) revealed her pregnancy news in June. kaley cuoco/ instagramShe gushed in her announcement that Matilda had a “little sissy on the way.” kaley cuoco/ instagram

She and Pelphrey, 44, have been an item since 2022.

The duo, who share the same management team, started dating on the heels of Cuoco’s divorce from second husband Karl Cook.

Before marrying the equestrian in 2018, Cuoco was married to tennis star Ryan Sweeting from 2013 to 2016.

Cuoco became a mom in March 2023. Instagram/kaleycuocoThe following year, she and Pelphrey (pictured above in September 2025) got engaged. Variety via Getty Images

Five months after going public with Pelphrey, Cuoco revealed she and the “Ozark” alum were starting a family.

Matilda was born in March 2023, with the new mom gushing, “Overjoyed and grateful for this little miracle. … @tommypelphrey didn’t think I could fall even more in love with you, but I did.”

The following year, Pelphrey proposed to the Emmy nominee — despite her previously swearing off ever walking down the aisle again.

The couple (pictured above in September 2024) have been together since 2022. Chelsea Lauren/for ebmrf / ShutterstockCuoco previously predicted she and the “Ozark” alum would have “maybe another kid” before tying the knot. Kaley Cuoco / instagram

“Amazing weekend,” the bride-to-be wrote alongside her August 2024 engagement ring debut.

Cuoco subsequently teased to People that “maybe another kid” would “come first” before they walked down the aisle.

The “Meet Cute” star, who had yet to “start planning anything” for their nuptials, quipped, “We’re gonna go way out of order. That’s our plan.”