Piya, In my opinion as long as sexual act goes size does not matters much. But two things does matters ! One is the man irrespective of his size should be able to use it ' appropriately' !He should be able to last long that much enough that his partner should experience the greatest of orgasms!
Second one is , though size does not matters in the actual sexual' act' , visual impact of the bigger size tool is always impressive and it starts a feeling in the mind of a woman concerned how would it feel!
I can explain it with an example, When given a choice in selecting the fruits Which would one most probably would go for? Bigger and juicer one correct? Because we always like bigger things in life like bigger smartphones, bigger homes, bigger vehciles , bigger television sets , the list is endless!
I think you are thinking that a little more bigger tool of your hubby would not have hurted you much! Its your outlook now . We need not to comment on it.