Souza, 32, then shared a photo of little Gianna sleeping on her chest, writing, "God blessed us."
The new mom then took to Instagram Story with even more snapshots from her pregnancy journey, which she expertly hid over the past nine months. "We welcomed our healthy baby girl Gianna," she added, "and we couldn't feel more blessed in this moment."
Karla and Marshall tied the knot in 2014.
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