I am so very sorry for your loss, and I will keep your family in my prayers.
The other parents have wonderful advice. I agree that in this difficult situation where I'm sure your mind is on so many things and you need this time for yourself, you should just follow your instincts. If your husband, inlaws, or other trusted adults can stay with him and help monitor his feelings/emotions (and remove him if it's too much), it might be best for you to keep your family together. On the other hand, I think it could also be a wonderful middle ground to have him stay with other people during the funeral itself and join up with the family event afterwards if there is something along those lines.
