This was actually my second ultrasound ever since I learned I was pregnant. According to this ultrasound (wherein my OB was also the sonologist), I'm 6 weeks and 5 weeks along which moved my due date from Jan 13 to Jan 24, 2009.
We also saw only one fetus. Thank God! At first I wanted twins but I'm high risk as it is (overweight) that carrying two of them would make this pregnancy really difficult and would give me more complications than I can handle. We also saw the heartbeat which is measured at 133 beats/minute. It was pretty amazing.
The fetus is still quite small measuring 7.8mm. I can't wait until I reach my 5th or 6th month so we can have a 4-D ultrasound and see who the baby will look like.