Need opinions please

So, at the perinatal doctor, the ultrasound showed a white spot or.(eif) and he said that makes it one thing that could lean toward downs syndrome ,but he said based on everything else it was a 99.7 %the baby won't have it and will be healthy. I just want to know if any of you experienced this only to have a healthy baby. I'll be getting a quad testing done to ease my.mind. I'll accept whatever comes my way,but I stress a lot!!