Nope, not at all. In fact, I think I still feel a little melancholy about my multiples' first year or two. There ARE some things that I wish I would have known to do differently (for example, I would have had two Ergos, and I would have hired more help).
I had a singleton after my first two and it was an awesome and even dare I say healing experience. Ultimately I know I need to reconcile my feelings with the reality (yes, I did have twins) with what I wanted, and how if I had not had them then these two little stinkers I absolutely ADORE wouldn't be here. And so I wouldn't change it. Does that make any sense? I guess it's that yogi or whatever thought of just being OK with where you've been, b/c that's how you got where you are today.
Mom to 3 awesome kids, 6.5y, 6.5y, 4.5y, plus a newbie born this year.