My Wife is suffering from Neurofibromatosis type-1 she is 29 years under type -1 she just has Café au lait spot on all over her back shoulder ,on face and neck which are less visible than her back shoulder we had our first child in 2014 soon after her birth after 2-3 days Café au lait spot was also seen on my daughters body i never knew that my wifes prob can come to my children we are planning to have second child hw can we test disease if she gets
pregnant and in hw many mnth testing can be dn