Yes, you are right, you said that this fear can be because you don't have any dog ​​in your family and if you had any shortcoming, people would have raised it as a pet, then everyone would be afraid of it. And it would have gone away but this fear of yours is also because he was now lying back. That all your worries and fears are for your children and your husband is a very good thing. It shows how much you love your family. My prayers are always with you and It is my prayers that Allah Ta'ala always protects you and your family