Is there a chnce everthing is ok

Alicia

So my Dr called me today from my blood work and said I am high risk for trisomy 18 and I have to go to Seattle to get a advance ultrasound done to see of I have it cause they said I may or may not I depends on what ultrasound shows 

But looking to see if anyone has had this or anything like and what the out come was cause I read the internet and didn't like what it was showing please just need a ease of my mind