6 wks 5 days baby heart rate

Hello! I had an ultrasound at 6 wks and 5 days. They were able to see the heart rate but they said it was a little low. My baby's heart rate was at 95. They want me to come back in two weeks to recheck and make sure things are progressing as they should be. I am starting to feel anxious that the heart rate is low and the baby won't make it. Has anyone else had a similar experience and everything worked out okay?