I just had my first ultrasound and am so, so relieved that everything so far looks okay, especially since I had been really worried about potential ectopic pregnancy. The ultrasound tech said that the baby was measuring 9 weeks and 3 or 4 days, which is exactly what I should be based on my OPK. The heart rate was 173. It was a bit surreal to watch the monitor and it almost felt like it was happening to someone else - but to see the baby moving and hear the heart beat was so amazing and definitely makes this seem more real.