1;120 risk for downs, please don't read and run

Any advice from women who have been through this? My bloods came back with a 0.83% chance. Amniocentesis is out of the question because the risk isn't worth it to me. Termination would never be a option for me either. I have the option to have more blood taken, babies dna picked out from there and tested so I will opt for that. I'm just so scared, so nervous. The odds could be worse but as a 20 year old first time mom, I'm terrified for my baby. I really need some advice right now.