Pregnant bride 😱

Sa
I'll be 16 weeks at our wedding...ok elopement. Any other ladies get married when knocked up? 
I finally got my gorgeous gown today in the mail for our beach wedding but I'm stumped at how to ask for it to be tailored. A corset back to accommodate any growing seems smart. Not showing yet at 13 weeks but something tells me this lil baby wants to be in pictures.. 😂😂
Anyone else have advice???Â