It depends on your husband. I just would bring it up every once in a while and talked him into getting a pal for Georgie. I did not push too hard so he would not get mad when I brought up the subject. It took me 20 years to get the first dog and about 7 months to get the second.
He is an only child and thought it would be hard to share the love and I talked to him about how much I enjoyed my sister to play with and it would be the same for dogs too. If you can show how much your dog enjoys other dogs, it may be easier.
It all depends on how much he likes dogs as to how easy it will be.
When we got the second it took a couple of months before we were sure we did the right thing.