No you're not the only one - I'm also in here and also doing IUI. We're in the two weeks waiting period of our third round. I can't see how it's worked though. There are absolutely no symptoms of any kind, including swollen boobs being totally absent.

But as with every cycle, we learned something new this month: I've always know I have an iron deficiency (something to do with a whacky form of arthritis I have). So I got back onto an iron supplement this month, and added a B6 supplement into my vitamin regime too. Instead of registering a crappy 6.9 endometrium on ovulation day, I had a lovely 8.1. And instead of a 24 progestoerone reading on day 21, I had 32!

I can only attribute these changes to the extra iron, folate and B6 I've taken in the past month. I recommend both these vitamins highly to anyone who'd like to try. But as with anything - do your own research first. You need all the facts to decide what's best for you.
:-)
P.