hi, im 20 years old and my fiancé is 18..she has a brother who is 17 years old with asperger's syndrome..and her mother has an autistic nephew (the son of my fiancé's mother's brother), my fiancé has 2 other siblings which are not autistic or anything related to that.. but we think that there is a risk because of my fiancé's side.. is there a big risk for our kids to have autistic problems or syndromes like asperger's?