"He was home not even a week, maybe four or five days, and my fiancee started noticing something," Stevenson said. "That's when they found a mass in the same spot where his left kidney would have been."
On July 26, doctors told Stevenson and Swidorsky that their son would live no more than three weeks.
"We were waiting for when Logan got better so it would be a wonderful day for him," Stevenson said of their previous wedding plans. "We just decided to have the wedding together this weekend and threw everything together in a week."
The family wants to share Logan's story to show the world how hard he fought, and to let other families with sick children know they're not alone.
"The toughest thing a parent has to do is bury one of their children," Stevenson said. "He showed me personally that I have to be as strong as he was."