We're in a relatively similar position. My wife has checked out OK, same as you, but I've got iffy morphology as opposed to motility, although my first couple of tests had poor motility as well (things improved each time for some reason).
Fortunately things seem to be fairly straight forward with assisted conception where the problem is the male's, and where it's not too severe. If you can't conceive naturally IUI or IVF are likely options. With motility less than 40%, it is still very possible to conceive naturally, but generally takes longer and lowers the odds per month from the usual 20-25% to a lesser percentage.
Volume, morphology, count, and other factors are all as important as motility so you need to know what those factors are as well to get the full picture. In any event, if you've checked out OK, and your DH only has low motility (quite common) then it's certainly not time to panic. You'll get there!
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