My LMP was June 24 which puts me about 5w3d. I went for a scan yesterday(at 5w2d). There was a gestational sac measuring 2 cm but no yolk sac. My doctor said that a yolk sac should have been visible because of the size of the gestational sac. He tells me to prepare for yet another miscarriage but wants to see me in 10 days for a followup scan.

Is there still hope everything is fine?