Does my baby look fine

She took two measurements and baby measured 7 weeks 6 days and then 8 weeks 0 days. What’s that think on top of the baby ? The thing on the side is the yolk sac but What’s that thing on top ... I’m so paranoid bc my first baby had a lethal genetic disorder.

This is an ultrasound of my first pregnancy that I lost , baby was 7 weeks 5 days here.