My bitch is 30 days from her 1st mating .
I have used a stethoscope to try and hear heart beats . Im a little impatient as she will be scanned in the next 7 days so i thought id have a go myself , she was laying on her back having her chest rubbed and i thought i could hear heart beats .
I was just wondering if this is feasible at 30 days ?

Its ok , ive found out its between 6/8 weeks .

I can hear from 40 days