Why did you choose iui

Trying
I have unexplained fertility issues. SO is fine and I'm fine on paper and I've just finished my first round of <a href="https://glowing.com/glow-fertility-program">iui</a>. 
I was wondering for ppl doing <a href="https://glowing.com/glow-fertility-program">iui</a> what's the reason you selected that assistance? 
Thanks