Hobbs ITA the heart wants what it wants... I totally get where you're coming from and many of your words re: GD have helped me out. I'm keeping FX you have another DS in there. Oh and I will PM you today re: the encopresis stuff. Just saw your note on the other thread.
NBP that's the thing with adoption that is so scary ... all the unknowns. There are unknowns when we have bio kids too though, but ITA the ones with adoption are a whole 'nother ball game. We have 2 friends who have adopted internationally, one from China and one from Russia, so have some idea of what we'd be getting into. And much as I want-to-want to adopt, I don't think it's where DH and I are supposed to be leading our family. So while it's out there it's still something neither of us feel like is our path.
The only folks I know who've done HT IRL have, like you said, not even had a single embryo left or had only 1-2. It seems that's not uncommon. If it comes down to us having another one DH and I will have to have some very serious convo's about it. I'm really not sure I want to get pg again w/o knowing it'll be a DS so in a way I'm afraid it's going to come down to us either doing HT, or not having a 4th. Ugh. Much like I wish we felt called to adoption I wish we felt 100% comfortable with HT.