How fast should a heartbeat be at 9 weeks?

At 9 weeks of pregnancy, the normal heart rate of a fetus is between 110 and 160 beats per minute (bpm). This range may vary slightly from fetus to fetus and can be influenced by factors such as gestational age, activity level, and maternal health. The fetal heart rate can typically be detected during an ultrasound examination. It's recommended to consult with a healthcare professional for further evaluation and guidance.