The OB (who I've seen before, and like pretty well) did not bring up my weight or what it should or shouldn't be. We talked briefly about exercise, and about how it was okay to dial it back if I found spotting afterwards. I was also reassured that a sweaty-palmed 23-year-old med student would definitely not be delivering my child.
The ultrasound tech who did the screening was very friendly and chipper - I was expecting her to measure in silence, then tell me grimly to wait for the results, but she was chatty and encouraging, told me that things looked generally normal, and had a nice bright flat-screen on which I watched Napoleon flap around like a fish, then settle on his/her back and wave a fist, which was odd and amusing.
In other news, I quickly consulted the pregnancy book my friend loaned me (which seems to be a recruitment piece for the Natural Childbirth Brigade) yesterday and learned that it's still TOTALLY OKAY to go skydiving at 12 weeks. Yeah. That's great news. I was really worried about not being able to skydive for nine months. Let me go book that airplane right now.