Early Gestational sac?

Naina

I went for my 6 week ultrasound (history of miscarriage) and they saw something like a sac, but they weren’t sure if it was a sac or just a fluid buildup and hence they are still worried of an ectopic. I do believe I ovulated late since I got my positive test almost a week after my periods were due.

But has this happened to any of you? Does the picture look like an early gestational sac to you.

No yolk sac was seen.