These early ultrasounds provide comfort and reassurance to the expectant mother. They also help with dating your pregnancy properly and getting an accurate due date. When is the earliest you can see a heartbeat on ultrasound? At about six weeks into pregnancy (four weeks from conception), you should be able to see your baby's heartbeat on ultrasound. The typical heart rate at this age is about 100 beats per minute. As your pregnancy progresses, your baby's average heartbeat will be between 120 and 160 beats per minute. What if I don't see a heartbeat?