Ok so I have my bridal gown that I am so in love with BUT I am concerned that I will not be able to dance that well in it and I love to dance. It's a drop waist gown so it hugs my hips and rear

and shows off my curves but since its snug I worry about the dancing. So I was thinking of getting a reception dress something pretty and elegant maybe something that reflects my theme which is 1920s, so maybe flapper inspired? but nothing crazy expensive. Is that silly? Should I get a dress for my rehearsal and wear it again as my reception dress or is that tacky? Or forget about the second dress all together and just get used to my gown? And if I were to get another dress when would I change into it? Looking forward to some input it's much appreciated. Thanks in advance.