Amy: Why didn't you tell me?
Penny: I didn't tell anybody.
Amy: I'm not anybody. I'm your best friend.
Bernadette: What's going on?
Amy: She's pregnant.
Bernadette: That's fantastic! Why didn't you tell me?
Amy: She didn't tell me, either.
Bernadette: But I'm her best friend.
Amy: [chuckles] We'll get into that later.