Anyone have hormone testing done?

I've been ttc for over 2 years now. I had my tubes and ovaries checked, been taking metformin and letrozole for about 6 months now. Doc wants me to do <a href="https://glowing.com/glow-fertility-program">iui</a> but my insurance wont cover it and we can't afford it. I've wondered if it could be a problem with my hormones, they never checked any of that. Do they usually check that? In my head it seems like something they would do. So I'm just curious if anyone had had their hormones checked.