Thanks everyone. I'm booked in next Tuesday for another scan. I think that between now and then I'm hoping that my bub will have grown LOTS and the heart will have started beating strongly.

All these thoughts go through my head like - "I wonder if the embryo implanted later than normal, like late in the second week" or "maybe the baby was at a different angle and that was why it 'seemed' so small". But then I just wonder if I'm building my hopes up too much ... I guess being positive gives this baby a better chance than if I was negative.