I don't think DH knew how hard it was going to be and he keeps telling me he is not sure he wants a second (he wanted 2 before DS). Drew has colic but it's getting better. Did your DH's change thier mind about more kids? I am told it gets better, and it is.
Re: Anyone else's DH not sure they want another one?
You will completely forget how hard it is right now. It gets so much easier when they are able to walk and talk and become independent, IMO.
I am in the same boat. DH wanted one more, and I did not. Now it is the other way around. I also want to start trying in January, so I am hoping his mind changes soon.