OMG.

Kind of a major spoiler to drop in a widely-distributed clip, ABC, but we'll take it. In a sneak peek from next week's Grey's Anatomy season finale, we learn that someone is pregnant.

We're not going to say who it is in this space, just in case you want to go into this two-hour finale event (see intense promos) without any expectations or clues as to what happens.

If you want, it won't be longer than 9:02 Thursday. As far as we know, this is the intro to the first half of the finale, "Sanctuary." The second half is called "Death and All His Friends."

To see who's carrying a Grey's Anatomy baby, watch ....

[video url="http://www.tvfanatic.com/videos/greys-anatomy-season-6-finale-sneak-preview-1/" title="Grey's Anatomy Season 6 Finale Sneak Preview #1"] [/video]

Follow the jump for another sneak preview clip from the sixth season finale of Grey's Anatomy, in which Mandy Moore guest stars as a patient who needs a blood transfusion:

[video url="http://www.tvfanatic.com/videos/greys-anatomy-season-6-finale-sneak-preview-2/" title="Grey's Anatomy Season 6 Finale Sneak Preview #2"] [/video]

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.