Positive quad prenatal testing

Hey just got the worst phone call ever I’m stressed now and can’t stop crying. I when for genetic testing and got the results this morning.. came back positive for Down syndrome. It came back 1 in 350 I’m really bad with numbers so in my mind that’s a high odds. I’m just wondering if anyone else got this and how do you cope I have to wait for 10 days for the results. 😭😭😭😭😢😢😩