I don't know why you're asking, if you belive the DNA test was genuine. You have the evidence right in front of you that two lighter skinned people can indeed produce a dark skinned, dark eyed child. Besides, define "Mexican looking". That term bothers me. There are blond people in Mexico and they are just as Mexican as darker people from Mexico. Mexican is a nationality, not a racial type. Dark skin, eyes, and hair are dominant traits, genetically speaking. That means, in very simple terms, that the darker colours tend to win out over the lighter colours and you have said there is clear evidence of darker characteristics in your family. Looks like some of your ancestors' dark genes dominated over the lighter ones you and your husband ended up with. No one can predict exactly what genetic traits will get passed on. Another child you have might well look much different.