After 12 transfers (in 2 1/2 years) and no success I demanded that I get checked for killer cells as my husband and i always got good fertilisation and were transferring 2 blasts with the last few transfers. I got my answer today - i have killer cells, who would hear of it, hubby has low sperm and I have killer cells, how unlucky are we ? I was wondering if anyone has had the intralipid treatment prior to a transfer and if anyone has had success ? Any information on the drug, costs, and success stories would be much appreciated.