IUI success or advice

Elsa. • 25 years young, TTC for over 2 years now
How do <a href="https://glowing.com/glow-fertility-program">IUI</a>'s work? My fiancé and I have been trying for a little over 3 years with no luck. I've had an hsg last year and everything was fine with me. He has been tested and he's fine as well. I was on femara for 3 cycles and nothing. What do you guys think I should do next? The drs say that an <a href="https://glowing.com/glow-fertility-program">Iui</a> is next. Has anyone had luck after an <a href="https://glowing.com/glow-fertility-program">iui</a>?