Abnormal Blood Results & Ultrasound

I am desperate and a nervous wreck right now!😭

When I had my first trimester screening I was told my baby had thick skin in the back of the neck and it was a cause of concern but it could also be nothing. My blood work came back abnormal and I was told I have a 1:5 chance of my baby having down syndrome and 1:8 chance of my baby have trisomy 13/18. I should add at the time of the screening I went in at 11 weeks 5 days but after the ultrasound I was measuring 13+2.

I went gor my anatomy today and I was told the skin behind the neck is still thick and the bowels are bright. I'm told I'm still considered HIGH RISK for one of the Chromosome abnormalities. In my gut I feel like nothing is wrong with my baby. I saw HIM( boy bu the way) moving around like crazy, all fingers and toes, strong heart beat..etc. the doctor wants me to do an amniocentesis and looked at me crazy when I said I don't think I'm willing to take that risk...considering the risk for miscarriage. I feel at a loss right now..I feel like I'm suffocating. I don't know what to do. My heart is telling me to continue my pregnancy and have faith my baby will be happy and healthy. A small part of me thinks I should do the amniocentesis. I should also add that the doctor has said the blood work is not a concrete answer and is inconclusive. The only way to know for sure is amniocentesis. PLEASE HELP!

Have any mommas gone through this and their baby was perfectly fine?

Any mommas who have done the amniocentesis?

I am 17 weeks and 5 days now!