Hi. Thank you ladies!
From what I've read, it IS possible to O maybe 2 weeks after a mc, but it sure can be confusing. I am a regular on an "older moms" board, where sadly, many ladies have lost their angels, and it seems lots of them get AF 4-5 weeks after their loss, so I'm guessing they O'd maybe 2-3 weeks after.
I asked my doctor what to expect but she sort of left me in the dark, as though anything could happen.
I guess I shall have to check my temps in the morning...hopefully I will get some answers there, because that is supposed to be a pretty sure way to tell. It's odd, but the whole time I was PG I actually slept well! Before that, I'd been waking up at 2 almost every night and staying awake for hours after...that started up again recently.

But maybe I'll be lucky tomorrow.
Thanks again for your replies, and sorry too for your losses.