Fetal Heart Monitor What's The Earliest You've Heard The Heartbeat On An AngelSounds At Home Fetal Heart Monitor?

What's the earliest you've heard the heartbeat on an AngelSounds at home fetal heart monitor? - fetal heart monitor

I am 9w5d pregnant, and I heard the heartbeat 9w1d for the first time. I do not even monitor the hook sounds. Has anyone learned so early on a monitor at home?