Cinderella it's so common for FS to dismiss it. I asked to be tested after 3 bfn with ivf + 2 yrs ttc naturally. He said no, I don't believe in it. Another 3 failed cycles and I finally found dr m thanks to Bubhub and got pregnant first try. We were also unexplained. If I could have a do over I'd see dr m from the get go. The irony is that it seems now that my FS now does intralipids which is a big part of immune treatment!