I’m so lost

Diana

I went for my 20 week anatomy scan on Monday and everything was perfect at my 12 week scan and my 20 week scan the only thing they found was a tiny tiny hole in his heart called a vsd and told me I should get a nipt test done to exclude Down’s syndrome etc etc this is my 4th baby and I’ve never been though this before the doctor told me not to worry because this is the most common birth defect but now I’m scared of my nipt results to come In