I hear PND is something that your friends and family should be prepped for; they will see it in you long before u see it in urself. Just something so simple as "not acting like yourself" is the beginning signs. I don't know how much that ties in with anxiety but I'm sure it's all fairly similar aka tied to hormones emotions n stress.
I'm so glad there's so many others here as well. I felt like an idiot joining a baby forum when we are still so far from TTC let alone UTD lol. Good to see I'm just normal :-P
In regards to getting baby expenses out of the way before doing house I COMPLETELY understand. Esp when you've got two non-blood wombs, you want siblings to at least share their dad. I know a ss couple who spent extensive time and research on finding a donor who looked very similar to themselves when young to help enhance the link.
Of course family is about more than just blood and looks, but it's nice to do what u can :-)