I have to agree with your DH. My DH and I are "unexplained" and had no issues producing tons of eggs, sperm count was perfect, etc. Yet I failed 3 IUIs, 2 fresh IVFs, and 2 FETs. Transferred 2 each time and BFN each time. On my 3rd fresh IVF, we did a freeze-all due to OHSS and transferred 2 blasts ...