First, thanks for all of your replies on the posts below. You are all rational. Still, I am nearly 100% sure this cycle didn't work, although I would elatedly eat crow if I were wrong.
Anyway, one question that often comes up in my consultations with one doctor after another is whether any of my direct female relatives had endometriosis as well. And the answer, I now realize, is maybe.
Some background: my grandmother gave birth to my mother when she was 35, and then she gave birth to my aunt, who has Down syndrome, when she was 40. All my life, I had just assumed that she and my grandfather (who died when my mother was young) had gotten married late. But then my mother mentioned in passing a couple of years ago that my grandmother had been told by a doctor shortly before her marriage (which turned out to be when she was in her early 20s) that she would never have children. Why? I asked. My mother wasn't sure, but she thought maybe it was "fibroids or something." But maybe she had large endometriomas or similar? I don't know. Anyway, my grandfather went off to the war and then came back from the war, and my grandmother started feeling ill, and the next thing she knew an innocent rabbit had lost its life to confirm that she was pregnant.
Now, my parents got married right after college. My mother had me at 25 and my brother at 27. I'd always just assumed that they waited to get pregnant, since my father was in graduate school and my mother eventually was as well. Alas, I found out a couple of years ago that they had been trying that whole time to get pregnant, and it hadn't worked. Yeah, so having a hard time getting pregnant when you're 21 (and 22, 23, and 24) - not all that common. Endometriosis? Maybe.
My point is that I guess I wish I had found this all out sooner. But I grew up in a very WASPy family, and personal reproductive histories are not often discussed (unless someone has overshared after a few too many gin-and-tonics at Thanksgiving). I just laid my own assumptions on top of the few details I knew, and never thought to ask more. And you know about assuming - it makes an ASS out of U and ME. Ha!
I don't know if any of this information would have changed my own attempts at getting pregnant. After all, I got married when I was 31 and 1/2, and we started TTC not too long after that. We married three years after we'd met, and I believe that was the right amount of time.
But, still, it would be nice to be a few years younger. I feel as if my back is against the wall, reproductively speaking, and this is my only chance to have a biological child. It isn't a great feeling.