A bit late as think this was a question asked on the other thread, but I read somewhere that sometimes the pregnancy gets so far then fails, is because it doesn't need particular genetic material up to that point (I guess for parts of the baby which form later in the first few weeks) so it's only when it starts trying to build those things that it can't and fails. Not sure if that's true but makes sense.
Am now back in 2WW though clearly not sure if have actually bloody ovulated. This is 4th cycle post MMC though only 3rd cycle of trying post MMC as we missed the first cycle due to bleeding continuing.
Trying hard to be positive though at 39 it's bloody hard. Just so sick of the build up and then disappointment at a BFN or AF.
Meanwhile the world and his wife seem to be sailing through their pregnancies no bother (at least people I know personally anyway).
I feel like you @unicorns - I am finding it very hard to be happy for these people and I do hate how bitter the whole experience has made me