Gentay and Nidhulaine..... thank you so much for all that. I will be writing all that down for when I see Dr M in a couple of weeks. I have asked him before about doing IVIG before transfer, but he said no, but I am going to ask again! I have had lots of tests, but I know there's a few that haven't been done, plus I have my throid playing up at the moment, so am doing blood tests galore to try and sort that before doing the next FET. Thanks soooo much for all your help.