@SH998 thanks for your response, its such a minefield of information and very subjective! This is my info:
FET 1: 5AB BFN
FET 2: 5BA BFN (beta tomorrow but FRER has as good as confirmed its not worked)
In this FET 2 I have been spotting since 5dp5dt (pink and then brown since everyday). I wonder if it attempted to implant but failed, if its an aneuploid then suppose that would make sense. In any case my Progesterone levels were tested at transfer and were really good (69 nmol) and I didn't spot on my first FET so this transfer was different in that respect. I do normally spot before a period but normally its a few days before, not 5, and its never pink just brown so not sure what happened this time.
My remaining embryos are a mixed bag - 5BB, 5BB (day 6), 5BC, 5CB, 4CC. I also have a 12 cell day 3 as yet to culture. Dr has said previously if doubles are done it would need to be 2 the same grading level. So likelihood would be 2 x 5BB or 2 x 5BC/CB.
I wonder if my steroids might be upped with the thyroid antibodies but not sure, in any case its more of a time saving putting 2 in... that would end up being 4 embryos transferred then up to that point.
I am considering further egg collections if the next FET does not work, then revisit FETs. Want to bank what we can for transferring before I get older!
Did you do any of the extra tests like EMMA/ALICE/ERA etc? Also was it natural or medicated FET that you did? I've been doing natural