But fans of The Big Bang Theory were treated to not just one fun reference to The Big Bang Theory, as the Young Sheldon season 5 finale also features a secret Easter egg about Sheldon's future.
George and Mary's eldest child accidentally got his girlfriend pregnant, resulting in a slew of problems for the family.
but much of the episode focuses on Sheldon and his fear of the future. It's somewhat reminiscent of the season 2 finale, which directly tied into The Big Bang Theory finale.