Happy and scared at the same time

On my last appointment they took my blood to see is there chance for Down syndrome and spina bifida.So we went to camping and they called my husband (he was on the road and they couldn’t reach me).When I called him that I’m coming back he told me that they called him and I should call.I think I died then,because I was so scared.I called them and they told me that everything is fine no any abnormalities-relief.So yesterday call again that I need to make appointment for anatomy scan-I got scared and asked is this about blood test (first that came on my mind is that they mix up blood results) she was like no just need to do that scan anyway and to see gender.Again relief.Now I’m happy to see my baby (praying that everything be okay but still scared).