I am going to add the antihistamine protocol for my FET. It involves taking Claritin, Pepcid and Prednisone starting a few days before the transfer and then continuing it through the first weeks of pregnancy (if I am so luck to get pregnant). My mom explained to me the protocol, basically the high dose steroid is to break down the immune system so that the body cannot fight the embryo away and then the Pepcid and Claritin work together. I don't know all the scientific information about it and quite frankly I am too tired to care, but it is supposed to help in cases where there was a previous early miscarriage. So check.
I am not sure how many patients are currently on this protocol, but I suspect it is being used more frequently now. I am hopeful that between the different lining protocol and this new one, I will have covered my basis and this time will be different.
Oh please let it be different.