Theories of IUI BFP

Luz

For those who had unexplained infertility and ended up with bfp after <a href="https://glowing.com/glow-fertility-program">iui</a>, what is your theory of why it worked? The only thing I can think of is cervical mucus hostility? Or is it the trigger shot that helps for a healthy uterus environment?? This may be too deep but I’m a curious cat lol