HSG test- next step

Melisa • 35, Finally pregnant with #1 after IVF!! Due in May 💗
Got my BFN today. I think I'm going to try the HSG test. Have any of you done it? What do you think? After <a href="https://glowing.com/glow-fertility-program">IUI</a> #5 failed, I think that's my next step. I've heard of it helping to clear out tubes and ppl getting pregnant right away after. What can I expect?