Amanda Onnis just wanted a nice wedding. That's why, when the 33-year-old unmarried cosmetics saleswoman discovered she was pregnant last November, she panicked. She had known her boyfriend only a few months and recently moved from Boston to the Denver area to live with him. He immediately asked her to marry him. She figured they'd better elope. After all, it wouldn't be long before she would start to show. Still, a part of her heart broke to give up her girlhood dream of a lavish ceremony and a really great dress. But, in the end, she didn't. On April 21,...