First u/s in a couple of days .. What to look for?

Lanell • We’re expecting!🤰🏻
I know that some people see a sac but no baby. I have told my Fiancee to look when we go to our appt because my eyes will be closed while I'm praying. I want to know what to tell him to look for during the scan to tell if our nugget is present. I will be 7 weeks by then so hopefully we see something 🙏. Anyone has a clue of what to look for?... 😕