My OH was exactly the same way. With my first, I called from work to tell him I got a BFP on my lunch, and he asked what colour the line was.
Then he insisted I pick up a new test on the way home from work. I did that in front of him. Since my frist test had been a blue dye, and this one was a pink dye, he didn't believe me because the second test that he saw wasn't a blue line!
He still didn't believe until after the Dr did a urine test (even though I told him it was the exact same tests I was using)...and then did a blood test. Even after that, he kept telling me I wasn't "really pregnant" yet, because was only in my first trimester.
Men just don't know what they're talking about!!