The Big Bang Theory - Season 9, Episode 16
  • Episode Title: The Positive Negative Reaction
  • Episode Run Time: 30
  • Episode Air Date: 2016-02-18 20:00
  • Episode Summary: When the gang finds out about Bernadette's pregnancy, they celebrate by singing karaoke. Also, Bernadette is concerned when Wolowitz freaks out over her pregnancy announcement, and Wolowitz is convinced he must make more money to provide for the baby.