can my childs image be used without my permission?

[Nicole]

After attending a wedding I have found out my year old childs image is being used on a Facebook page and website to promote the photographers work. The photographer has copywrited the images and I have also found out some pictures were entered into a competition which I cannot find any details of. I am also concerned that the photograph competition promoters now have a right to the image as this "photograper" would have had to give permission for the competition holders to publish the image and may have also had something in their terms of entry like any images entered become property of "unknown company".