Other Lulu Elegant evening unclassified dresses

Never been worn, no tags attached. I bought this dress for my rehearsal dinner, but I became pregnant 3 months before my wedding and it no longer fits me properly. It is white lace, open back, can be used for a wedding dress as well. It is originally from Lulu's, it is a size "large" but their sizes can run really small. It's more true to a Medium. I am between a size 6 and 8, depending on the brand. My measurements are bust 36C, waist 28, hips 39 and this dress fit like a glove with a little room in the waist/stomach.