Calcium deposit on baby’s heart

Hi all,

I just had my anatomy scan this morning and they found a calcium spot on his heart. Everything else looked good, however, there were a couple things they couldn’t make out clear enough and referred me for a more detailed ultrasound with better equipment. Has anyone else experienced this before? They told us not to worry but I am a naturally anxious person and I cannot stop thinking about if my baby is okay or not. Any advise or personal experiences are welcome, thank you.