Memories don't just appear in therapy... and if your therapist is leading you towards answers, and even suggesting possible outcomes, then this is memory implantation. Memory recovery happens by itself, not before.
EMDR is not about recovering repressed memory, far from it. I would be asking the EMDR institute if I was, and see if your therapist is licensed through them. Memory recovery is not part of EMDR... memory processing is part of EMDR. IF, and a big IF, a memory appears that you had repressed, then that would typically come out after therapy, not during it.
EMDR is about piecing together what you have, not what isn't there, to fill in the blanks.
Exposure therapy does it a different way, but the principle is identical, being you write a memory down, read over it, add to it what has just jolted to your mind, read over it, add or subtract fact or fiction, read over it, and continue until all the pieces of the memory are complete. Exposure uses SUDS to monitor you... EMDR often uses body sensations and tapping to distract and focus you, whilst trying to calm you.
At no stage though, do you create memories in that process... you've already got the memory of the traumatic event, you're merely adding some minor missing pieces of the event by jolting your memory as to if anything else exists.
What you're talking about... amnesia memories... that cannot be fixed in therapy, and again, if your therapist is citing otherwise, I would be asking more questions from independent governing bodies. That is unethical, IF that is the case.