First trimester screening tested high risk for down syndrome

I went to the doctor Thursday to get my results for my first trimester screening expecting everything to be okay and hear good news instead they couldn't find my results and then they told me to go down to the lab and have blood drawn then they said nevermind come back next week on Wednesday and will do blood work then I left very upset as anyone can imagine then at about 5:20 I get a phone call that they found my results and that the baby tested high risk for Down syndrome and I need you to come in first thing in the morning and another set of labs drawn so that it could be tested to be sure has anyone else had an experience like is it possible that is a false positive I'm pretty upset with my ob office because I didn't get full results or go over it all I was told was high risk for Down syndrome no one gave me a clear answer I don't know the results completely I don't know if it's 1 in 62 1 in 500 1 in 1000 just that the baby tested high risk to add insult to injury I went in the next morning to have my labs done and I hear the lab text saying that those results were inaccurate and that she should have never called me to give me those results I just feel lost and confused I accept it either way it goes I'm just a mess mentally and emotionally any comments advice and prayers are greatly appreciated thank you ladies for your time

BTW I had my screening at 12 weeks and 6 days I am now 15 weeks and 3 days my results should be in sometime this week from that second set of labs I had the progenity test done