My duck hatched about 10:00 pm last night (4/13/2017). When I went to bed, he was just wiggling out of the shell and getting itself free. This morning it is unable to stand or balance itself. All the other hatchlings all walked just hours after being hatched. Is there something wrong with it. It just keeps falling over and laying on its side or back kicking its legs trying to get up. Any advice can help.