Just looked up my results for you. The Comment says "CD57+ NK cells above 10/mm2 is suggested by ongoing research to be abnormal"
My result was also 20/mm2 and I am now 12weeks pregnant on Dr M's protocol of 35mg prednisolone, 40mg clexane and IVIG pre transfer, 6 weeks and due one soon....
I had a BFN with prednisolone only and a chemical with intralipids.
Good Luck x