Am 12 weeks pregnant with my third child ( I have a 4 year old daughter and 2 year old son) and I've recently bought a Doppler to hear the heart beat but can't hear anything. Getting worried as iv tried the last couple of days to hear it but can't hear anything. I felt really sick and run down at the being of the pregnancy but from 10 weeks onwards I have felt normal. I have no sign of a bump or any hardness of my lower tummy, which I thought I'd be showing by now since it's not my first baby. Am just worrying myself that there is something wrong cause I don't feel pregnant and can't find any heart beat with the Doppler. I have a scan coming up this Monday which I feel I've waited forever for but just want to know everything is okay. Has anyone had any experience with a Doppler not finding a heart beat?