What am I doing wrong, RE: Doppler

pamiva1

Ok, so I have a home doppler that I'd love to be able to use. I'm nearly 11 weeks. It seems like lots of people can hear baby at 11 weeks. I get nothing! I was just at the DR on Monday and had an ultrasound and baby looks great and I know heartrate should be in the 150s/160s based on that appointment. Is it really just too early for me to hear something, or am I using this machine wrong? (PS I used it with DS, but it was a bit later... so I generally know where to put probe and what heartrate should sound like, it's just not working yet). Thanks for any input!