Play video content YouTube/Kelly StaffordMatthew Stafford getting hit where it hurts was actually a gift to his wife ... 'cause she joked the blow below the belt he suffered in Sunday's game against the Eagles was a free vasectomy!! "He goes back in [to the game], thank goodness, and after the game, I'm like, 'Hey, what was going on. Vasectomy doesn't even need to be needed right now 'cause God took care of it." Matthew, 37, and Kelly, 36, have four daughters together -- twins Sawyer and Chandler, Hunter, and their youngest, Tyler, who was born in June 2020. Months ago, Kelly opened up about the stress in parenting four children ... revealing she takes weed gummies and drinks wine to help her manage the chaos of motherhood.