Am I responsible for the mortgage on my husbands' name( he ped away)?

My husband died recently, the mortgage for our house was under his name. my name is in the deed, Since he was the breadwinner I can't pay the mortgage. my question is am I responsible for the mortgage?(since the loan was under my husbands' - even if I pay the mortgage now since I didn't establish credit history it would be hard to transfer the mortgage to my name) and if yes what do you think of short sale or if you have any advise I would really appreciate it. Thanks