I just bought this thing to wear under my wedding dress. Its a tiny bit tight in the waist but I'm still losing weight (wedding isn't until September so I have time). I think it fits ok at the bust but I feel like my breasts are super jiggly on top. Does this typically mean its not the right fit? I don't think I can't get a cup that is "taller" without the fit underneath changing. Am I making any kind of sense?