Praise be to Allah, the Lord of the Worlds; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions. We advise you and your husband as well to resort to Allah faithfully and truly, and supplicate Him to cure your husband and grant you pious children through legal means. It is not impossible for Allah Who granted cure to the wife of Ibrahim (Alaihi Salaam) while Ibrahim was aged and his wife was barren. He also granted cure to the wife of Zakariyah (Alaihi Salaam) and granted them pious progeny. If you are not able to get children through the legal ways then you may resort to artificial pregnancy. For more details in this concern, please consult our Fatwa: 82554. Allah knows best.