New Breaking Dawn Trailer: Vows, Dangers and Half-Vampire Babies

Last night was the best night of my existence.

I can't see Bella's future anymore.

Your heart will give out before you can deliver.

Do these quotes leave you excited enough for what's below?!? It's the latest full trailer for part one of Breaking Dawn. Following last week's 15-second tease, the following video takes us inside Edward and Bella's wedding, while also detailing her pregnancy and even depicting her in labor. Watch now... if you can handle it!