If you get a digital one, it will display the HR for you, making it a bit easier. If you find something under 100, it is yours, over 100 is probably the baby's (unless you are really worked up or just exercised!)
In addition to the digital display, the baby's HB sounds like a galloping horse because its fast. ?It sounds different than your own HB and is, obviously, much faster.
You will DEFINITELY know the difference when you hear it. ?Yours is slow and the babys is really fast. ?I knew the difference instantly when I was at the docs without her even saying anything. ?Its cool!
accordingtoabby.com"
"From of suffering emerges the strongest souls. The most massive characters are seared with scars." Kahlil Gibran
Re: doppler ??
The baby's hb is about twice as fast.