Welcoming Desi Arnaz, Jr.
In the episode “Lucy Is Enceinte” of the second season, Lucy and Ricky receive the wonderful news that she’s pregnant. She was pregnant in real life, and pretty far into her pregnancy at that, so the scriptwriters had to find a way to incorporate it into her character. The episode aired on December 8, 1952, but what’s surprising is that none of the show’s characters used the word “pregnant” even once.
On January 19, 1953, the couple welcomed their second child, Desi Arnaz, Jr., into the world. He would eventually appear on I Love Lucy, with his appearance causing ratings to skyrocket instantaneously.