We just got back from the second doctor's visit, the 12week visit.
We didn't get to do another ultrasound, (we don't get to do that again until August for the gender)
but we did get to hear the heartbeat via stethoscope. It was normal and strong. About 155-158 bpm. Which is normal. It was great hearing the heartbeat, we're even thinking about buying a stethoscope just to listen to the heartbeat at home.....All and all, a good visit :)