Hi Wickedgrl!
Here's a thought... Getting into the dress probably has a lot more to do with INCHES LOST than it does with WEIGHT. Exercise helps firm you up and helps you lose INCHES even if the weight lost hasn't YET caught up with the inches lost.
Hit those exercises, eat good, nutritious foods to fuel your workouts, and I bet you will may even need that dress TAKEN IN before the wedding!
Cheryl