I have one 2e/pg ds8.5. It's plenty. I didn't plan on have an only. I didn't plan on ds being born with special needs. I didn't plan on him being pg either.
We tried for a second child when ds was about 18 mos - 2 yrs. It didn't happen. I don't regret it now, but it took me some time to come to peace with it. I'm a middle of three and for a long time had always wanted two kids. However, I had ds as an 35+-yr-old mother. So I always knew it was pushing my fertility possibilities.
To be honest, the whole giftedness wasn't as much a factor as the other potential genetic stuff (autism, ADHD, PTSD, etc.) that scared the pants off me having kids earlier or more of them. I thought, "god, what if they turn out like___. Ugh." It was a pretty good disincentive to reproduce an offspring. And when you've got siblings that aren't exactly socially/emotionally switched on then you're a bit reluctant as well.
