Letrozole

My first cycle of letrozole and TI failed and I didn’t ovulate. My period came CD37. I am going in for day 3 labs tomorrow and hopefully start a second round with <a href="https://glowing.com/glow-fertility-program">IUI</a> and trigger with progesterone. Anyone have success with this? I have pcos and ovulate occasionally on my own. I had odd side effects last cycle like spotting and a late period so I’m nervous but hopeful.