Yes like Tami said, you, your husband and your child who has CAH must all have there DNA tested to see which mutation your CAH child has as all your children if they have the same set of parent must have the same mutant gene if they have it.  Without this information they won’t know what to look for.  It took about 8 months to find my sons mutant genes as my husbands were hard to find.  It was OK though as I was carrying a boy so I could wean of the Dex regardless. It turned out he was only a carrier & then my next baby because we had all the details took only 2 weeks after the CVS to find she was a girl and was Non-CAH & not even a carrier.

Lisa D