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Martin68

(22,791 posts)
4. A heartbeat cannot be detected at a such an early stage. It's an electric signal, not a heartbeat.
Tue Nov 15, 2022, 04:16 PM
Nov 2022

A 6-week-old embryo does not have a heart. A 9-week-old fetus has an actual heart, with four chambers. What is detectable at or around six weeks is essentially communication between a group of what will eventually become cardiac cells.

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