Hi Ce

I hear your frustration and pain. I am sorry that #5 wasn't it for you. As you know I can relate to this path and am glad you are venting it out and looking for some answers. Re the immunity issues, there appears to be two school of thoughts in my experience. Those FS who think their may be a link and those that are not convinced of any evidence of a discernable difference. Drs like Dr Sacks in Sydney do numerous tests and can prescribe treatments to overcome any possible immunity problems. Then there is mine who is the opposite end of the scale. After over 30 years in the industry he says there is no evidence to show causal link. If your FS is happy to entertain you having tests and possible ways forward then grasp it and go for it.

Like the others have said there is much evidence that numerous ETs are needed on average for a successful BFP. Perfectly healthy women have taken many go(s) to get there. That is what I hold onto. That sticky one is just around the corner. Unfortunately some of us just don't have that many embies (if any) after a stim so instead of having back up of frozens we need to stim time and time again to get as many ETs as we can to improve our chances.

On the different cycles, it depends on how you respond to your down reg. My system shut off on a down reg but I faired much better on a flare/boost cycle. It is a much less stable cycle (I had one cancelled because I probably O'd after only a couple of days on the stims) but can help women with hormonal issues or premature ovarian failure. The antagonist is the other type of cycle to try. It really depends what your FS thinks you may best respond to, but I would say after a couple of go(s) you are entitled to discuss a different approach/try to your treatment.

Wishing you lots of luck. Perhaps we should have another Canberra catch up soon when you feel up to it.
Also thanks for your message in my journal. I really appreciate it.
xx