Just got a call from my nurse and I want to get my thoughts out here so I can remember what she said.
My hCG didn't double from last week (8 days since my last quant), but they stop looking at hCG levels once they can see things on the ultrasound. So she said that wasn't so important. (Although I'm not convinced.) She didn't tell me the exact number.
Since my ultrasound measurement was more than a week away from where I thought I was, they will go with the ultrasound due date, because that is considered more accurate. That would make my new due date December 16. I will keep my OB intake appointment next Monday, but I will go back for a third ultrasound (just at my OB's office) at 8 weeks (two weeks from today), where they will look for a heartbeat. A heartbeat before 8 weeks still leaves you with a 15-20% miscarriage chance, but one at 8 weeks leaves you with a 5% chance - much better, obviously. But at least the baby's heartbeat this morning makes it be considered a real baby, rather than just a failed pregnancy.
I have implicit instructions to call if anything changes (i.e. bleeding or cramping), which along with the low hCG and way off measurements makes me think that this pregnancy is not headed in a great direction. But we'll see in two more weeks, I suppose... Hopefully this baby is the "Little Baby That Could."
I can't wait for the 12 week mark.