How to Comfort my Mind from Baby Down Syndrome Scare?

So, I took the quad screen and the results came back saying that my baby's chances of having down syndrome are 1/150. I am 30 years old. When I first heard about it, I was traumatized. Crying, making myself sick. Very scared. They suggest a high tech ultrasound and an amniocentisis. I had both. The ultrasound was fine. The High Risk Specialist was great with me. She took time to show me shots that they look for in baby as indicators of Down Syndrome or any other abnormalities. My baby girl looks fine. Looks good. I had the amnio also. Should get preliminary results today. I'm nervous, but not really. I have prayed and prayed. My husband has prayed. My family has prayed. The baby is covered in prayer. But, every now and then, I get this twinge of what if.... And I start thinking about what I would do. Would I want to bring her into the world with so many setbacks or am I taking the easy way out by not keeping her... Then I try to shake it off because I don't have a feeling in my gut that something is wrong with her. I just really don't. I feel like she's fine. Anyone went through this?