Baby heart rate. What have you gotten?

Ha
Ok so I see a bunch of heart rates and my baby's was 171bpm at 7w3d (measuring 7w6d and I thought it was 170bpm until I looked at the records if you notice inconsistency wih my posts). I want to see the consensus or if anyone has heard anything about higher heart rates??? Of course I want to make sure my baby is ok. 

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