6 Weeks Scan

We went for our first ultrasound today and I was told I am currently 6 weeks due on January 26th. We got to see the heartbeat and it was beating strong but did not get to hear it clearly. Is this normal at this stage? This is my first pregnancy. I won’t be going back until June 16th and I will be 8 weeks by then. I am just going to be a nervous wreck until the next ultrasound but trying to stay positive that everything will be okay. Felt so good to see the little heart beat though! 🥰