Looking for reassurance!

Hi everyone. I went for a dating scan today. By my dates I am 6 weeks and 4 days. I’m fairly sure I ovulated when I was supposed to. We could see a yolk sac but nothing else. She said it was only measuring about 5 weeks. I have to go back again in two weeks to check again. I’m just wondering did this happen to anyone else with a positive outcome? I’m really afraid my baby has just stopped growing..😔