How soon can you hear your baby heart beat?

It is possible to hear your baby’s heartbeat for the first time using a doppler ultrasound at around 10 to 12 weeks gestation. However, it is more common for the doctor to hear it with a doppler at 12 weeks. By the time you are about 16 to 18 weeks pregnant, you may often be able to hear your baby’s heartbeat clearly using a special listening scope called a fetoscope.