Nicole And Joel Getting Ready For A Shotgun Wedding?

The rumor mill has been working overtime for Nicole Richie and her alleged pregnancy, and now more evidence is building. The latest is that Nicole was seen sporting a huge engagement ring and skipping alcohol at the Center Dance Arts Pool Party last week. One source said Joel was "overly attentive to her - keeping his arm around her all night - and repeatedly asked her if she was OK." We still can't really wrap our minds around the idea of Nicole as a mother, but it doesn't look like these rumors are going away anytime soon.