What did you guys see?

I have my second ultrasound tomorrow. At the first one, I only measured 4w3d so I only saw the gestational sac. I'm supposed to be 7/8 weeks now and am wondering what you all saw (if you did have an ultrasound) around that time? This is my second pregnancy and with my
first baby, we heard his heartbeat at 6w4d but I know every pregnancy is different. Just curious!