5weeks5days Ultrasound

Diana

I went to the doctor a couple days ago and they said I was 5 weeks 5 days, 3 days sooner than they had originally thought. But all they saw was the sack, and they said it was too early for the heartbeat. But she said everything was measuring right and that everything looked to be going normal, but should I be worried? I don't go back for another ultrasound until aug 23.