I recently had my 1st ultrasound last week which I measured at 7 weeks 6 days. I was told a different time for my appointment then what they scheduled, so I was very late. the dr. had surgery that day and still saw me. the only thing that had me puzzled and I didn't think about it at that moment but I want told the heartbeat. Sound I be concerned? My Dr. did show my husband and I the heart beating for a white but he never told us the beats per minu tee e. I didn't know if this was normal or maybe because I was really late or what it could have been. My next appointment is the 23rd.