Have any of you ladies experienced IUI?

Tina
After a full year of TTC, tons of blood work, multiple doctors, HSG test, Semen analysis, more blood work, sonograms during AF 😝 we were diagnosed with "unexplained infertility".   We have met with a fertility specialist and have just completed my first (hopefully only) cycle of Letrozole. I go back Monday for a sonogram to confirm I have a sufficient follicule before using Ovidrel to trigger ovulation. If everything is good, we will go back again on Wednesday for <a href="https://glowing.com/glow-fertility-program">IUI</a>.  Never in my life did I think it would take all of this to get pregnant!  I'm so excited, nervous and scared all at the same time!
I'm trying sooo hard not to get my hopes up and obsess about this!  All I know is that this TWW will be the longest of my life so far!  Any of you lovely ladies been where I am?  What is <a href="https://glowing.com/glow-fertility-program">IUI</a> like?  Does it make you crampy like the HSG?  Any advice is appreciated!  
Thanks in advance!  😊