Thanks @seven201 and @VenusStarr 
I've had the biopsy, it went well, the doctor that did it managed to get two samples: one for the ERA EMMA and one for the NK biopsy, my husband is driving that one to Coventry as we speak! The doctor said he got good size pieces of tissue for both and it was straightforward which is great news for me since the first biopsy was so difficult to get. I have been counting down the days until I can stop the estradiol, will be good to be off it! I will keep taking progesterone for the next few days to give me some extra time to get the results and plan the transfer cycle.
@seven201 I'm not sure what to think about the first NK biopsy, there is someone in the immune thread that had their first sample come back at 0% and then the next month it was 40%, so I think I'll need to wait and see what this repeat shows.
How long has it been since they sent the cells off for the Pgt-A?
@VenusStarr that's great that you're moving forward! There's so much waiting around in IVF!