Hi kyllara and other ladies I have been reading this post as I was thinking the very same question when my 2nd FET cycle (3rd transfer) didn't work last month.
I am now down to my last two blastocysts but I think I will need another stim cycle next year
It's hard to believe it will work sometimes when so far my "text book" cycles and embryos ain't sticking. It's at least comforting to hear that there is tests that can be done. I notice that some of the US and UK forums the ladies are on a regime of meds that cover possible immune issues and infections etc. it seems that Australian FS prefer a fairly low key approach until there is repeated failures. I don't understand this as isn't better being proactive rather than waiting for 10 transfers ??!!
Bella I am following your cycle and I really hope this is the one for you