Not sure if I need to be worried at all. Had 20 week check yesterday. All well apart from baby was too low down, under my c-section scar to check spine and heart. So I have to go back in 2 weeks. At the start the heart and spine could be seen clearly so I'm not sure why she couldn't do it or why I have to wait 2 weeks. Any ideas? I'm prone to worrying but hope I don't need to. Baby moving about and can feel him regularly.