6 weeks 5 days ultrasound pic attached. Do u see anything?

Linda

6weeks 5 days Ultrasound, doc says pregnancy is in there but to early to see anything, she says atleast the pregnancy is in the uterine. I asked her if there's gestational sac, she says no but there's a yolk sac. I'm confused, what does this mean? Tested positive at 11 days dpo so I'm sure of my calculations. I have an appointment on the 2nd of august and Im a wreck untill then. Do you guys see anything in the picture?