Anyone else terrified of the anatomy scan??!!

I go Thursday for my abatomy scan and am so nervous. So far the baby has been fine, but so nervous they will find something wrong. This is my 4th pregnancy and so far every baby has had a different random birth defect. I haven't been stressed this whole pregnancy but now as the day approaches I'm getting so nervous. Anyone else feel the same. Really hoping and praying this sweet baby does not have a heart defect like my last little one did.