August 24, 2015 05:10 PM

DeAnna Pappas Stagliano got her wish: She’s pregnant!

The former Bachelorette and her husband Stephen Stagliano are expecting their second child — a sibling for daughter Addison Marie — this winter, she tells PEOPLE exclusively. On Friday, the Clean Kids Naturally by Gabriel Cosmetic spokeswoman revealed on their Instagram that baby on the way is a boy.

“Stephen and I are thrilled to be expanding our family!” the mom-to-be, who is due on Feb. 26, says.

“We have wanted more kids for a while now and are so blessed that we are pregnant again.”

Courtesy Pappas Stagliano Family

Pappas Stagliano, who wears a gifted POSH Mommy necklace in these photos, is most excited about her 18-month-old baby girl‘s newest role as big sister.

“We cannot wait to give Addison a little brother or sister,” the former reality star, who will welcome the new addition days after her daughter’s second birthday, shares. “She is such a lover and will be so good with another baby.”

She’s been open about wanting to expand her family with Stagliano, whom she wed in October 2011.

“We definitely want more children and we are definitely trying to conceive again now,” Pappas Stagliano told PEOPLE in May.

Courtesy Pappas Stagliano Family

— Anya Leon

RELATED: DeAnna Pappas Stagliano’s Blog Series

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