Could some explain this?

Dionne

This is my first ultrasound. I am 5w5d and I don't understand what I am seeing. Doctor doesn't seem to be concerned at all and says this is a very good indication of a normal pregnancy. My hormone levels should be somewhere around 35K or better. He said that it's too soon to see a heartbeat. I saw a heartbeat with my daughter at 6 weeks.

Is this a gestational sac and yolk sac with baby or just a gestational sac and yolk sac? I'm confused and the doctor didn't explain, he simply said this is your baby!

HELP! PLZ!