HSG and What Next

My husband and I have been ttc for close to a year and a half now. Not one positive test, all bloodwork has come back perfect, ultrasounds have come back perfect, his swimmers passed with flying colors. Three rounds of clomid and nothing. I am getting ready to have an HSG scan in the next week or two depending on what locations are open. Has anyone had this scan done? What did you experience? Was it too terrible? She said this would (realistically) be our last big test to see what is going on before looking into "what's next". Also that we now can consider ourselves part of the 1 in 8 who have unexplained infertility. After your HSG scan what came next for you? Looking for some fresh thoughts. Thank you!