Friendly reminder that at the 6th week, when the heartbeat is detectable, the body is still undecided whether it will keep the fetus. It's not an indicator of anything - just something we're emotionally attached to as humans.

20-25% otherwise healthy pregnancies end spontaneously before the 12th week and it's a mechanism used in non-surgical abortion.

At the 8th week my SO's gynecologist made an offhand remark not to get attached just yet, because we were still within the window where that happens.