If you aren't planning on settling in the US permanently, go ahead and send DH back to the UK so he can get a job, find a place to live, etc. Once he's settled, you can apply for your spousal visa either by post or in person if you live close to NYC, Chicago, or LA.
If you already have a place to live, sufficient savings, and a support system in the UK, you can apply for your spousal visa without sending your DH over here first.