You should approach this subject with your husband and discuss the matter objectively with him. Be both a good listener and speaker. Make sure your points are heard but also make sure you hear his side as well. If you need to actually write down the pros and cons together, do so. Have this discussion at a time where there are no distractions and you are dedicating time to this discussion.
If your husband is citing the economy, perhaps he is feeling a tremendous amount of pressure to provide more in a time where maybe he feels he cannot do so. That is a great strain on anyone, not just men.
I know people will suggest that you just 'get pregnant anyway' in the hopes that he will just 'learn to like it', but that is one of the most disrespectful and deceitful things a human being can do to another. Imagine that your husband really wants to move 6 states away and start a brand new life, brand new jobs, find brand new friends, and you are adamantly opposed to the idea. One day you come home, only to find your house sold, your belongings packed, and your husband smiling ear to ear saying "Honey, we're moving six states away! I know it isn't what you would have liked, but you'll see...once we get there and get settled in, you'll just love it!" I think you'd be highly upset!
While there is no need to write off the possibility of having more children, I definitely encourage you to have some deep discussions with your husband. Maybe after a little bit of time and talk he'd be more open to the suggestion.