Doppler Scare

When I was little over 7 weeks I decided to give the Doppler a try and see if I could find a heart beat. I did, but I completely lost track of time being so excited and determined to hear it again, that an hour had passed. I’m really shook up because I’ve read about all of the possible dangers to baby. Has anyone else had an experience like this and everything turned out to be okay?? Looking for relatable stories. No comments that cause more stress!