Genetic Testing- Both Carriers

Samantha
I just got the call that my husband is also a carrier for Ataxia Telangiectasia (ATM). I have an appointment later this week to discuss the results with the genetic counselor and also discuss options for further testing. She obviously didn't want to discuss too much about it over the phone. Unfortunately, my husband is away for school (we're both in the Army) so he won't be able to be at that appointment.
So far what I have researched has not told me much about how common it is to have both parents as carriers.  I am wondering if there is anyone else on here who has had both parents come back positive as ATM carriers? 
Obviously my mind is running in 5 million directions and I'm trying my best not to completely stress out, but I just haven't found too much info about it so far.