He’s arrived! On Sunday, February 18, Jessie James Decker and husband Eric Decker revealed they privately welcomed their fourth tot together earlier this month. “Our beautiful boy is here 💙,” the singer captioned a photo of herself laying in the hospital bed holding the infant while her spouse gazed at their son. Jessie, 35, revealed the 8.7 pound tot, whom they named Denver Calloway Decker, made his debut on Friday, February 9. The mom-of-four also shared a photo of the baby resting on a pillow clad in a onesie, and on her Instagram Story, she posted a picture of her infant’s hand wrapped aro…