Well turns out I am having twins!!! And their girls. My instinct was right
One is your heartbeat, the other is baby.
It's really easy to find your own heart beat and the sound of the placenta! Using mine the first time I heard my own heart beat which is very slow compared to the baby's heart beat! I hear mine on the right and left side!
the sound travels. You can hear the heart beat on either side and it sounds different which may make you think that there are 2 but if there are 2 then you would here 2 beats at the same time on either sides.
Whenever I use my dopler I think I hear two heartbeats as well, I even had them check to make sure at my last us lol there is only one boy in there idk why dopler sound that way but just sk them to double c heck and make sure