I know what you mean about "failing" a test. This was an unplanned and surprise pregnancy (we were using birth control and I am nursing... I guess we are in that small "failure" percentage). I feel kind of guilty putting it that way b/c I know all the people out there trying to get pregnant, worrying about why they aren't, etc.
My DH was not happy. Its been a week and he is coming around to it. He told me after a few days that he wants me to know he's not mad, just scared and worried. (we really *can't* afford another, but thats another story. I mean, we'll figure it out. There are other reasons, having to do with my schooling, that make this timing extremely inconvenient). I have to assume that both of us will come to a place of acceptance and even joy before the birth of our baby. Its happening a lot faster for me I think.
DH just started a new job after 2 months unemployed, and can't take any days off, so I'll be interviewing midwives, applying for medicaid, all that stuff on my own. I wish he could be involved in the process, but I kind of think that its good to take care of some of those logistics, so at least he can see those things come together.
So like others say... give him some time. And yourself.
My DH has made a few jokes about it, so that is a start :)