pardon me for barging, but why the IUI? been there, done that...6 times, actually...and more. Off the subject, i know, and NOMB, too. Do you have a diagnosis?
I have to say, your sitch seems foreign to me, ("into the looking glass"), having spent alot of time in infertility message boards, and living that whole roller-coaster. (if you're just getting started with this, you're in for quite a ride.) Anyway, I found it more typical among the IF wives to whom I've spoken to be in the LD camp. (so much so, I have to wonder why THEY are wondering why they're not conceiving. hello?) So many threads on how to optimize conception chances with the least possible amount of sex. (I kid you not). Very difficult for the likes of me (HD), but I figured it was par for the course, I guess. anyway, you certainly won't have that problem, but boy, I could write a book. imagine getting it once a month, governed by the date on the calendar, so we can make a baby. not "'cuz I like you". ugh...the memories...
anyway, I'm babbling. Just wanted to say good luck...AND more importantly, tread carefully with this. It ain't all peaches and cream for the guys, even though it seems like it. I dare say the whole experience really messed me up big time. Its bad enough having your SL governed by your spouse...worse to be governed by a "thing" (the infertility), or a 3rd party ("the docs"). yikes. Maybe worse for a SS-HDH who's already resentful enough...but I suspect it could possibly be an issue for any guy, hd or ld.
anyway, just a "heads up"..and if I can be of any help, let me know.

(oh, and we were eventually sucessful w/ ivf..one 3yo DS...after 3+ years of hell. Loooong story!).