Advice very welcome!

Been trying for 18 months. Not a single positive pregnancy test.

Have had 4 months of leterozole and 2 with IUI.

I have regular periods and my partners sperm has been tested and he’s all fine. I ovulate on my own as well but the dr wanted to try leterozole to get me ovulate just a little sooner in my cycle.

My thyroid levels are 5.9 up from 1.4 but I’ve been taking my thyroxine doses daily, haven’t missed one so I don’t know why it’s gone up. It was 1.4 in March and it was 5.9 this week. Doctor doesn’t know why it’s gone up so she’s increased my thyroxine to 150mcg up from 100.

So now I feel like all those medicated cycles have been a waste because my thyroid levels could have been what’s been stopping us all along.

I’m really frustrated.

Is there anything else we can do or try?

Does going gluten free or dairy free really help with thyroid levels?