Eric Decker just ensured he won't be having any more kids following the birth of his fourth one -- revealing Monday night he had a vasectomy.
The former NFL star had fun while making the announcement ... sharing some photos of him recovering from the procedure while wearing a T-shirt that read, "Vasectomy survivor. I kid you not."
In one of the snaps, he had a bag of frozen peas on his private parts -- while holding what appeared to be a stiff drink in one of his hands.