Robin's pregnancy fake-out on How I Met Your Mother
Leave it to How I Met Your Mother to drop not one, but three twists in its two-parter, "The Rebound Girl" and "Symphony of Illumination." After a one-night stand with Barney, Robin abruptly tells him, "I'm pregnant." But it turns out she only thought she was with child (why she didn't take a pregnancy test first, we'll never know). In the second half, which Robin narrates to her supposed future children, Ted-style, she learns that she can never have kids. That must be great news for someone who never wanted kids, right? Nope. Robin becomes overwhelmed with sadness, as we learn that Robin never became a mother. Those kids? Merely figments of her imagination, who vanish once she accepts her infertility.