No, you are absolutely not being selfish. You are being a normal woman whose bio clock is ticking. I'm so sorry you had to hear that. And surprised that those prejudices are still out there. My mom was told similar things almost 40 years ago when she waited for me to make my debut - she was 39 at the time. While some might disagree, I think I turned out ok.

I had my first child at almost 36 (would have been sooner, but IF had other plans for us) and my second at 39. Both are very healthy, bright, and normal girls. And a good friend of mine just had her second at 41 - again a normal, healthy child. For that matter, we are hoping for another, if the fates are willing and our IVF pocketbooks hold out. Yes, some risks are heightened, but not by a whole lot, imo.
As for the people who seem to believe that when you can't get pg you should automatically adopt or you are being selfish, well, that is a whole nother thread, but I always like to ask them why
they didn't adopt.
And to the woman who said you could be glad you could do whatever you want, what is her answer when you say all you want to do is take care of your baby?
One final thought, if it helps, I am willing to bet that if you had gone up to that group and announced you were never going to have children because you and dh like your freedom, well, guess what they would have called you?
ETA: Totally OT, but I just clicked on your store link in your siggie, and oh, my goodness, what beautiful stuff!!