Yolk sac???

Haley • TTC #1 👶🏻 #2 👼🏻👼🏻 praying for our 🌈🌈

I’m 5w4d today I had my first ultrasound we saw the gestational sac but no yolk sac. I should be around 2,600 hcg today has anyone had this happen is it normal? When did you see the yolk and baby?