I meant to reply to this post but didn't have time. I am 36, I have a 4.5yo and a 2yo, and I am 95% sure that we're done. My pregnancies were uneventful, and the 2nd baby was the easiest baby ever. I did have postpartum issues with my SI joints that haven't gone away, which makes me wary.
When I was growing up, it was very rare that anybody had more than 2 kids. I have one sister who is much younger, so I am technically an only child. My husband comes from a big family, and he wouldn't mind having more children, but he also knows that it's much harder logistically and would affect our lifestyle - bigger house, bigger car, etc., and it's not something we want to take on.
What Patience said about individual time vs. family time really resonated with me. Maybe I am not very maternal, but I really miss having my own time. It was worse when I was staying at home, but even now there are a lot of things that I want to do by myself, or with my husband. I don't want to sound like I am a neglectful parent, quite the opposite - I am one of those obsessive moms that has to control every drop of food their children eat. Maybe that's why I feel like it's too much work