Y'know what? You're not ******** selfish or greedy, and I'm going to go ballistic if I hear one more person say those things about someone who has chosen not to have children. The truth is, there is nothing wrong with arranging your life the way you want. It's not like people are deciding to have kids out of sheer genetic altruism; the choice to have kids is just as motivated by personal wants and needs as any other major life choice, and it shouldn't be privileged or regarded as inherently better. Bottom line is that it's okay to want what you want, and people shouldn't be giving you s**t about it, no matter what it is (Unless it involves you being a d**k, in which case, normal social consequences still apply to you).
Your husband doesn't seem to have a whole lot of empathy. You've at least tried to understand where he's coming from, what with the close-knit family and the desire to be a stay-at-home parent. He doesn't seem to have put that thought in about you, though. He seems to expect you to magically get rid of childhood trauma, give up aspects of your life that are important to you, support him financially in a big way (I'm fine with stay-at-home parents, it's just that that requires a lot of money and logistical effort), go through serious physical change, and adopt his values wholly. I mean, hell, pregnancy and parenthood are big deals, and they shouldn't be undertaken lightly. Thinking you can bully or coerce someone into signing up for that is Not Cool. That he is not bothering to meet you halfway on even understanding/talking about this is troubling to me. It suggests that he doesn't respect you very much, or doesn't think your concerns deserve equal weight.
Frankly, this isn't a situation in which both of you are going to be happy, not unless you wake up tomorrow having had a genuine change of heart, unaffected by anyone else's input or sulking. And that's okay. You thought things would go differently, and there is no shame in being wrong about that. It's not like you lied or banked on being able to browbeat him into not having kids. It would be tough to split up, yes, but you'll both survive, and you'll both be free to meet people whose goals match your own. There's no need for blame here, and for all I know, you'll be able to talk it out. But I want you to know you shouldn't feel obligated to do this if you're not 100% on board, without coercion, and that there are worse things than parting ways over this.