A husband and wife fertilized an egg and agreed on planting it in the wife`s womb, but couldn`t do so due to the spread of corona virus pandemic, so the fertilized egg remained stored in fertility clinic at the hospital. Now, the husband has passed away and the wife would like to have the fertilized egg planted in her womb. Is it permissible for her to do so since families of both spouses were aware of that and it was documented by the fertility clinic staff of that hospital?