If you share an iCloud account, you are going to run into problems. Your husband needs to have his own Apple ID with his own iCoud account linked to it.
He can set up a new Apple ID by creating a new iCloud.com email address if he signs your Apple ID out of Settings>name>, scroll to the bottom of the screen and sign out. Then, click on Sign In>Don't Have an Apple ID or Forgot it>Create Apple ID>put in his accurate birth date>type in his First and Last Name>Select Get a Free iCloud email.
Then he can set up a new email account that ends in iCloud.com. He can try any prefix to the @iCloud.com that he wishes. If it is already take, he will get a message to that effect.