You might be asking yourself why the couple didn't bolt for the hospital at the first sign of labor, but Chaz says they initially thought it could have been false labor. So they waited it out to see if the contractions continued, which they did. Chaz says they "...stayed for the rest of the demo because she is a trooper and LOVES Skyrim."
Full story via the link:
http://www.gameinformer.com/b/news/archive/2011/08/05/woman-goes-into-labor-during-skyrim-presentation.aspx