Feeling lost

I’ll be getting our 4th IUI in a couple days, and I’m feeling extremely anxious because if this doesn’t work, our doctor recommends IVF-which we can’t afford. We’ve been trying 2 years, and have done 6 rounds of clomid with timed intercourse, and 3 failed medicated IUIs. I’ve never had anything close to a BFP, and we have both had all the testing done and are textbook normal. I just don’t understand if we are normal, why nothing is working, and why IVF is even an option. I just wish I knew what was wrong with me. I’m feeling so lost and scared for our last IUI 😞

Unexplained infertility is the worst. 💔