I had my ultrasound this morning, and first I saw two large dark spots, then they zoomed in and there were two heartbeats and two yolk sacs! They confirmed the official due date was around December 9. I thought December 8, so I was just about on target, and they're both measuring around 7 weeks.
Missed your announcement...so exciting...twins! I hope that the midwives you want can still take you if you have twins! Congrats.