Grey is pregnant? The crowd was shocked!

TV Title：Grey's Anatomy Season 3 (2006)
TV Synopsis：For 15 hours and 15 minutes, surgeons in the operating room make time fly. Outside the operating room, however, time plays with us, and even for the strongest, it seems to catch up with us, slowing us down, wandering back and forth, until it freezes. We're stuck in a moment, unable to move in any direction.
　　After the many changes in the season 2 finale, everyone is thinking, remembering, and contemplating what's next. macdreamy realizes she made the wrong decision, but now it's Meridith's turn to make a mind-numbing choice, George still hasn't been able to respond to Kalie's burning love with those three words, and Izzie is pulling herself together, only to wonder if she'll ever come back. I just don't know if she'll ever come back, Christina realizes how deeply she loves Burk, and everyone is in a new situation. Finally, Meridith's panties, the protagonist of the Season 2 finale cliffhanger, turn out to have been picked up by Addison.
Welcome to Grace Hospital, west of Harvard's toughest surgical residency program, the most brutal training ground for medical recruits. Meredith, Izzie and Christina, yesterday students, today doctors. If they can survive the seven years of purgatory at Grace Hospital, they'll be qualified surgeons. But the trio has more than a grueling internship ahead of them: they have to deal with jealous boyfriends and sick parents, one-night stands and a housing crisis. In the face of these obstacles, they have no choice but to rely on each other.