10 Most Emotional Big Bang Theory Moments
8. Baby On Board
Leonard and Penny were always destined to be together from the moment the show began all those years ago. After they finally tied the knot a few seasons ago, there was one more thing fans of the show had been clamouring for from the couple. A baby.
Well, fear no more diehard Lenny fans. Following Sheldon and Amy receiving the news they would be the recipients of a Nobel Prize, the episode after revealed that Leonard and Penny were keeping their pregnancy a secret so that they didn't steal the limelight from Sheldon and Amy. That was, until Penny starting being frequently sick on the plane journey to Sweden for the awards ceremony, leading Sheldon to question whether or not she had some sort of infectious bug. Once Penny told him the news, his worries quickly came to an end.
It's a shame we'll never get to see Leonard and Penny's baby grow up. Unlike Howard and Bernadette with their two children, the relationship between Leonard and Penny has been one of the main subjects for the entire time the show's been on air as opposed to beginning a few seasons in.