Camberville, I totally get your feeling of "loss." It's the loss of an expectation, maybe a dream you had, of being a gm. If you have a lot of friends and relatives who are gms, it's completely normal, imo, to look forward to becoming one, yourself. And I can see where it would hurt to realize you're not going to.
I'm going to chime in, however, with those who say there's still some hope. Iv known a few people who said "no kids" and then changed their minds. Do I think you should build your life around this hope? No. By all means, move on and find other ways to be happy. But maybe keep the possibility in the back of your mind.
And what is this, people, about gc being ruled out because a ds is gay? Today some gay couples adopt children, etc. Same with single women. I think it's best to be married when you have kids, but nowadays, it doesn't have to be that way, surely.
My deepest sympathies to those of you on this thread who have lost children... So sad...