It can be difficult for an expectant bride to find a suitable dress. She may have fallen pregnant after setting the wedding date or may have been unaware she was pregnant when she got engaged. In most cases, the couple decide to get married before the baby is born, so the bride-to-be may have a prominent bump.
A wedding dress for a pregnant bride must allow room for the bump to grow; its future size can't be predicted so the dress must be 'expandable'.
Empire line dresses are an elegant and practical style.
The wedding dress needs to be longer at the front so that the hem hangs straight.
Removable straps are a good option to allow for a change in bust size.
Don't just buy a dress in a bigger size - it will make the bride look larger and won't fit properly.
Obviously avoid anything too tight or corseted.
The best option is to find a wedding dress company specialising in maternity wedding dresses. Alternatively, have the wedding dress made.