"Congratulations! I'm so happy for you two. Hold on, I have to tell Bernadette," Howard gushes over the phone to Sheldon while knocking on the bathroom door. "Hey, Bernie, guess what? Sheldon and Amy got engaged! Can you believe it?"
As the camera pans to Bernadette's face, it's clear that she's completely shocked -- but not about Sheldon popping the question. "Oh my god," she whispers to herself while holding up a positive pregnancy test. "I cannot believe it."
Yes, that's right! Bernadette and Howard are expecting another baby, but the newlyweds are not too thrilled about welcoming another addition to the Wolowitz family so soon after the birth of their first-born daughter, Hallie. (Howard even cried!)