On Monday, the "Real Housewives of Beverly Hills" star revealed the exciting news on Instagram, sharing a slideshow of photos and a video. The baby girl will be the third child for Teddi and her husband, Edwin Arroyave, who have been married since 2011. The couple already share daughter, Slate, 7, and Cruz, 5.
And Teddi's 5-year-old, for one, seemed just a little disappointed he wasn't getting a baby brother.
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In the first pic, the family is seen wearing matching striped pajamas -- with Teddi and Slate in pink, and Edwin and Cruz in blue -- as they are surrounded by light pink confetti. Similarly, the family was all smiles as the kids were ready to pop the black mystery balloons.
However, not everyone was happy in the gender reveal video, where Cruz and Slate popped the confetti-filled balloons. While Teddi, Edwin and Slate cheered, Cruz looked noticeably upset with the fact he's getting a baby sister. Teddi is seen consoling her son and even lifted him up, while Cruz showed off his huge frown.
As someone off-camera told Cruz he's going to be "forever the only boy," Edwin reassured his son that he still has his dad.
"It's a girl! Of course, we would have been equally excited either way, as @tedwinator, the kids and I are just blessed to have a healthy baby no matter the gender," Teddi captioned the sweet post. "Although I did promise Cruz he could help name her so not sure she'll be too thrilled being called 'Catboy' Arroyave."
She added, "Thank you to @ocballoonbar for the pop we needed, @204events for the rad background and @jorgebphoto for capturing this moment so perfectly."