Had my second ultrasound at 7 1/2 weeks, last one was at 5 1/2, couldn’t see much. This one I am measuring right on, and heartbeat of 166! My first miscarriage (I have had 3 this year) we saw a heartbeat at six ish weeks but it was only 111, and that is not high enough to be considered a viable pregnancy. We were so happy to see this one at 166! Could see the heart beating away! I’m convinced it’s a girl with the high heartbeat, but hubby is hoping for boy. I’m happy with either!