Stay calm. There must not be valid reasons for the failures you are observing. Sometimes there must not be any reason for the complications happening. It’s just the circumstances that might be going wrong. Rest would not stay unfold. Just as unexplained infertility. You would never get the reason for this one thing. It’s just a term and strong enough to damage our whole life.
I would suggest you switch your doctor. Or maybe the procedure. See what happens. Good luck.