what do i do???

so i already ordered my wedding dress last year June.. i thought i was all set..i loved my dress at the time.. but thru the year i started to change my mind.. now i saw another dress i love but the wedding is less like 3 months away.. i think it's too late to order, but i dont think ill be happy in the other dress...(Private Label by G 1226)..its not poofy enough for me (at first i didnt want a dress that was too poofy) what do i dooo