I bought my dress a couple months ago and last week I tried on my dress again to get it altered it it won't button completely in the back. It's a size 4 and isn't able to be let out at all. I was about 107 pounds when I bought it and now I'm at 115. I hate that I have to lose the weight because I feel so much better being a healthier weight. But I have to fit! The wedding is in 12 days. Does anyone have any suggestions? Thanks in advance.