I don't know what to wear as a bride. We're having a civil ceremony and I don't want to be overdressed.
Well the short answer is - wear whatever you want! It's your day so the choice is yours and many brides who opt for a civil ceremony go for a big white dress. On the other hand, many brides choose a civil venue because they want something different and less traditional and that goes for the dress too.
Where whatever you feel most comfortable in.