the midwife tried for ages and just could not find baby heartbeat mine kept coming up and she kept saying no thats yours. I know she said not to worry as still so small but cant help it especially as I lost a twin around 9 weeks with no signs or anything, still not bled like they said i would. I have to go back next week and they will try again next week, I thought it would be a great birthday present to hear it but instead it has just caused worried me. in my prvious pregnancies they have never ha a problem finding it and even commented its easier cause i thin. Has anyone else experienced this and can reassure me.