Your dress is gorgeous and you look beautiful in it. This is your day, so wear whatever you feel is right and you feel comfortable in.
I had the choice between a very plain dress and a more formal one and I chose the simplier one...BUT, this is my second marriage, I am 35 and only me, my fiance and my son are going to attend. We are getting married at the WL and having dinner at Artist Point then going on a fireworks cruise, so for me simplier is best...
Again, wear what you are going to be comfortable in and talk to your fiance about your dilemma...you look fabulous in the dress...also you are getting married on my birthday so, I know for a fact, your day will be wonderful!!!
All the best to you!
Lauren