I was debated getting a Doppler but thought Id try this first. I have an anterior placenta so I cant feel a lot of movement and I want to feel like everything is okay. I doubted it would work at 20 weeks but now two mornings in a row Ive found the heartbeat. It does take some patience and time to find it but it was definitely the babys heartbeat both times. Make sure you pause at each location for approx 10s before moving it so the sound can calibrate. And also start a little lower than youd think. If you want super high quality and ease in finding the heartbeat earlier on Id recommend the Doppler route, but if youre well into your 2nd trimester and have a pretty tight tummy this can totally do the job for a fraction of the price!
Rachamko about MyBabysBeat - Fetal heartbeat, v2.92