Kate Chastain, 40, of Below Deck fame welcomes her first child, a son named Sullivan Cay

Kate Chastain, 40, of Below Deck fame, welcomes her first child, a son named Sullivan Cay, as she shares the first photo from the hospital bed

Below Deck alum Kate Chastain has welcomed her first child.

The 40-year-old reality TV star shared the happy news via her Instagram page on Friday.

In the picture, she can be seen beaming with pride as she holds her new bundle of joy, which has a full head of dark hair.

They recline in her hospital bed as she wears black Gucci sunglasses with her hair in a messy bun as she fashions an open white blouse.

“Hard Launch: Sullivan Cay,” the blonde TV star – who announced her pregnancy in December – wrote in her caption.

She hasn’t yet named who the father is, though she’s been wearing a diamond ring on her wedding finger lately, suggesting she’s engaged or married.

New Mom: Below Deck alum Kate Chastain has welcomed her first child. The 40-year-old reality TV star shared the happy news via her Instagram page on Friday. In the picture, she can be seen beaming with pride as she holds her new bundle of joy

Good name:

Good name: “Hard Launch: Sullivan Cay,” the blonde TV star wrote in her caption

In mid-December, she announced the news of her pregnancy.

Kate shared a selfie in which she wore a blue floral dress that accentuated her burgeoning baby bump.

She also flashed a diamond ring on her wedding finger.

“I’ve been planning so many birthday parties for you,” she gushed in the caption.

The star added a series of alternating red and blue heart emojis.

As for her romantic situation, she spilled on stage at BravoCon in November 2022 that she was “single,” the network reported.

She revealed last year to People that she was due in May.

And she added that her pregnancy announcement was prompted by the fact that fans will soon see her on TV.

The big news: in mid-December she announced the news of her pregnancy.  Kate shared a selfie in which she wore a blue floral dress that accentuated her burgeoning baby bump

The big news: in mid-December she announced the news of her pregnancy. Kate shared a selfie in which she wore a blue floral dress that accentuated her burgeoning baby bump

Superstar: Although she left Below Deck (pictured) a few years ago after six seasons, she can still be seen on the retrospective companion show Below Deck Galley Talk

Superstar: Although she left Below Deck (pictured) a few years ago after six seasons, she can still be seen on the retrospective companion show Below Deck Galley Talk

Although she left Below Deck after six seasons a few years ago, she can still be seen on the retrospective companion show Below Deck Galley Talk.

Viewers can also see Kate on the Peacock reality show The Traitors hosted by Alan Cumming.

“This is such a new and special experience, so I really protect what I share publicly,” Kate said of her pregnancy.

“But with new episodes of Below Deck Galley Talk airing on Bravo after Christmas and The Traitor premiering January 12, 2023 on Peacock, there’s just no hiding my baby bump!”

Trio: A job she took on a gap year turned into a lasting career, which subsequently brought her fame on Below Deck as the chief flight attendant;  pictured with Brianna Adekeye and Jen Howell

Trio: A job she took on a gap year turned into a lasting career, which subsequently brought her fame on Below Deck as the chief flight attendant; pictured with Brianna Adekeye and Jen Howell

She bellowed, “I love being a mother. It’s something I’ve always hoped for, so this really is a dream come true!’

Kate fell into the yachting business when she took a job on a luxury ship during her gap year, according to her Bravo bio.

The lark eventually turned into a lasting career at sea, which then brought her fame on Below Decks as a yacht’s chief stewardess.