Why you might not hear babys heartbeat You might not be able to hear a babys heartbeat at your first ultrasound. Most commonly, this is because its too early in the pregnancy. This doesnt necessarily mean theres a problem. Your doctor may recommend you schedule another ultrasound 1 to 2 weeks later.

How will I know if my baby has no heartbeat?

To conclusively diagnose a loss, a doctor must perform an ultrasound to check for a heartbeat. The heartbeat does not develop until 6.5–7 weeks of gestation, so the absence of a heartbeat before this time does not indicate a loss. To confirm a pregnancy loss, a doctor may choose to perform scans on multiple days.