Do some research on your own for the Mermaid Wedding Dresses. You can look for dress models in magazines or online, but try also wedding blogs because they depicture normal women in wedding dresses, rather than perfect models looking great no matter how the dress is, it is more realistic that way.
Finally when you decide to go and try some be open-minded. Try more than one dress shape to see which one flatters the most your body. There are ball gown types, A-line, Empire, Princess, and Mermaid.
All of these types are specially created to suit all body shapes, although they are not universal and according to your body, you will find one of them to be the most suitable.
A-line and Princess style usually merge with every body shape and have the power that, due to their construction, to hide unwanted tummy fat, while the Empire style goes better for tall figures and Mermaids to emphasize a curvaceous body.
The most important thing is that you feel comfortable in it and it makes you feel special when you’ll find the special one you will feel like the most important person in the world.