We had a second ultrasound last Thursday and all is well. There's definitely only one baby, no twins. It's a very healthy baby though...we already heard the heartbeat! A steady 120 bpm. The "sac" we saw in the ultrasound last time is gone, so we're thinking our doctor was right about it being a simple buildup of fluid.
Morning sickness...aka "all day sickness"...has set in and I'm exhausted! I forgot how tiring it is to be pregnant...not that having JRA and a 9 month old help any. My JRA has been doing pretty well lately. A little stiff and sore in the morning, but not bad actually. Remission already? A girl can always hope!