What is the meaning of no heart beat at 6 week?

At 6 weeks of pregnancy, a human embryo is expected to have a detectable heartbeat. The absence of a heartbeat at this stage is often a sign of an unsuccessful pregnancy or a missed miscarriage. When the embryo does not develop properly or stops growing, the heart stops beating. Other factors, such as an ectopic pregnancy or an inaccurate gestational age estimation, could also lead to a missed detection of the heartbeat. If no heartbeat is detected at 6 weeks, it's important to consult a healthcare provider for further evaluation and management of the pregnancy.