• gestational sac, bigger and better than before
• yolk sac, circular and gorgeous
• a little nubbin thingumajig, which Dr. SF said was...the fetus! (I guess technically it's still an embryo, but fetus was the word he used...I get the feeling Dr. SF is not too interested in what happens after one gets pregnant. :) )
No heartbeat yet, but we weren't expecting to see that this week anyway. (I'm 6w1d today.) Last week Dr. SF had said I'd come in every week until 8 weeks, but since everything is looking good, and no late-implanting twin has shown up, he wants me to come back to the clinic just one more time, next Thursday (7w4d). Provided we see the heartbeat then, I'll get booted to my regular ob/gyn. (And not a moment too soon, since I just learned my clinic will stop accepting my insurance starting in August.) I'll stay on the Metformin at least until we see the heartbeat, and probably stop then.
It hit me that now I actually have to make a decision about hospital/OB/etc. I'm freaking out. A lot. But so, so happy.