August 30, 2021 | 11:52am

Briana Culberson’s family is getting even larger.

Former “Real Housewives of Orange County” star Vicki Gunvalson’s daughter is pregnant with her fourth child — just nine months after having her third.

Culberson’s husband, Ryan Culberson, announced the news on Instagram Sunday with a photo of safety pins representing each member of their growing family.

The pink pin, which is supposed to be Briana, is shown with a mini green pin inside of it.

“The grand finale coming March!” Ryan captioned the photo.

It appears Gunvalson, 59, is over the moon about the news, as she “liked” the announcement.

The couple are already parents to three boys: Troy, 8, Owen, 7, and Hank, whom they welcomed in November. The pair announced Briana, 34, was pregnant with Hank using the same safety pin method.

“Worked for Hanks [sic] announcement so why not again,” Ryan, 37, joked on his Instagram Story.

Gunvalson re-shared the safety pin photo at the time and added, “Couldn’t be more excited to announce #3 is on its way. Congratulations Briana and Ryan.”

Briana Culberson and Ryan Culberson with their kids
They welcomed their third son in November.
Instagram

When Hank was born, Ryan shared a picture of himself cutting the umbilical cord at the hospital.

“At 9:37 AM I cut a cord! Mom and son are doing amazing! I’m pumped!!!” he wrote alongside the picture.

Gunvalson shares Briana, an ER nurse, and her son, Michael Wolfsmith, 36, with ex-husband Michael J. Wolfsmith, whom she divorced in 1991. The Bravolebrity then married Donn Gunvalson in 1994, but the duo parted ways in 2014.

She announced her engagement to Steve Lodge in April 2019, but the couple have yet to marry.