Okay, here's the update.
Babies are measuring 9w4d and 9w3d, both have a heart rate of 174. I did not get a photo as it was a diagnostic ultrasound and the machine isn't set up to take them, but they looked like fat little gummy bears, I could see little limb buds and everything.
I am still on reduced activity and pelvic rest for the bleed, but it does not seem to be affecting babies, in fact I am measuring a full week ahead of LMP now!
Babies were much higher than I thought, my uterus has already moved up and the tech found them about halfway between my belly button and my pubic bone... no wonder I wasn't finding anything on the doppler.
The HCG drop is just my body plateauing naturally, the tech thought that because my HCG rose extremely high in the beginning that perhaps it has served its purpose already and is no longer needed. So if any of you experience a decline starting at 7-8 weeks, there still is hope!