hi there. i recently got a fetal doppler and i do love it. the thing is i am never sure if i am picking up both hearts or not. the doppler does not read the rates very accuratly as the babies seem to move too much before it quite gets a rate. i do find the two heartbeats in quite different places. meaning maybe 3 inches apart or more. would that be the both of them. if any of you used one can you let me know how far apart on your tummy you found them at this stage(apx 16 weeks) and how different the rates were?