19 week ultrasound // scary find

Kirstin
So yesterday was my 19 week ultrasound. Baby was moving around, kicking, and even playing with its toes. But then the doctor came in the room to tell me my baby has an "echogenic bowel". It could be nothing at all or as serious as Down syndrome. They can find out more through amnio but i won't do that. I'll have to wait to do another ultrasound 
I am so scared and just need to stay positive. Has anyone else had this before in their babies????