I'm terrified

So lady's i really need to vent. Today i got a call from my doctors office. Boy did they have some news for me. I will be 17 weeks tomorrow. A few days ago i got some test done. They told me that my baby has a very high risk of having down syndrome. I'll love my baby reguardless. But i just dont know how to feel about it right now. Im stressed already from the news. They say they want to take some more test to see if baby actually has it. Chances are high. I told baby's dad, but no one else. I dont wanna be more stressed than i am by anyone elses stress. I just need words of encouragment right now and positive vibes. Anyone else ever been through this?