just my 2 cents since i'm married

wedding day will be a long and hectic day for the both of you
unless your wedding is just signing of the papers and a simple meal...then u got lots of time

if its a traditional and following all the customs for wedding....trust me...
even if both r not drunk, you will be too tired for anything when the day ends...

i definitely got drunk.....
wife was xtremely tired....

anyway...congrats on your wedding.....
its a big step and even a bigger commitment in life
just be urself and dont worry too much
its going to be a happy day no matter how it ends.