We ended up with 5 million swimmers for the IUI. My RE said it looked good, but from what I've read, 5 million really isn't too good of a number. I'm sure you'll hear more about this from me, since I've started obsessively reading about sperm counts and thinking about what it means ;)
The IUI itself was a little more painful than I expected, and I had some cramping afterward. I had an acupuncture session right after to help me relax, and by the time I left, the cramps were gone.
Something about the whole morning just left me feeling really down, and I feel like I can almost put my finger on it, but not quite. I think I might devote a whole post to it in a few days.
For now, I'm adding in progesterone and baby aspirin, and hoping that I get a BFP in a couple weeks so I don't have to think about IUIs and sperm counts anymore.