I bought a Doppler to hear baby’s heartbeat I found the fast horse gallop heartbeat right in the middle, then on my left side by my pubic bone it sounded like another heartbeat but much slower and it was the same thing on my right side. I’m confused as to why I can hear it on both sides. Apparently the slow beat is meant to be the placenta but if so why can I hear it on my left and right side?

Could someone please help me understand 😅 thank you