So, Will talked to the RE again.
Monday, 7dp3dt: 16 (probably still HCG booster in my system)
Wednesday, 9dp3dt: 23
Today, 11dp3dt: 48
Direct RE quote: "I don't know if you can get any more positive than that."
Progesterone = 77
Estrogen = 1500
Next steps: return to IVF center for bloodwork Monday.
We are cautiously thrilled. We haven't gotten this far in a long time. Fingers crossed. We will enjoy the weekend. As of today, we are pregnant!