Is this normal?? why does it sound like this??

Kayla • First time Mama in April 💕 instagram: nicolejxnes snapchat: nicolejxnes

I know a lot of mamas are against getting a doppler because it can stress you out but this doesn’t seem right, i’m not an expert or anything but his heart sounds like it’s beating differently now. Is it suppose to sound like this?

First one is how it NORMALLY sounds, second is the one i did this morning that sounds weird.

UPDATE: I just got them mixed up 😂 the heart rate on the screen made me think it was still his!