"There are 4 of us in the room"

We had our 2nd doctor's appointment yesterday. We didn't get another ultrasound but we did get to hear the heartbeat!!! It was the most amazing sound in the entire world. Words can't even express how I felt when we heard it. Our doctor smiled and said "There are 4 of us in the room." He also said the heartbeat sounded perfect! I will never forget hearing the heartbeat for the first time....