Hi Sandy, after doing 18 stim cycles and having raised my concerns regarding immune issues many times only to fall on deaf ears, I only wish I knew about Dr M and did the immune testing earlier. My feeling is that whilst the testing and his immune protocols may be expensive I am sure that it would be way cheaper than what we have spent to date. After reading Dr Beers book and a transcript from an interview he did in 2005, for me with endometriosis and high Cd56 and cd57 NK cells my feeling now is that all of my previous cycles were a huge waste of money as without the immune protocol Dr Beer suggests that woman like myself cannot sustain a pregnancy and eventually don't even get pregnant at all due to the NK cells becoming more potent and attacking our precious embryos before they even have a chance to implant. It is your body and your money and only you can make the decision that is right for you. It does sound like your FS is at least open to the idea of immune issues whereas many other FS are not.
I will see if I can somehow post Dr Beers transcript as I found it very interesting and others on here may do as well. I have my phone consult with the wonderful Dr M today. Good luck to all the ladies, wherever you are at in this crazy journey