I had my first trimester screening this past Monday. I received a call today from my doctor telling me that I have low Papp A and HCG levels and I have an increased risk 1 :16 for trisomy 13/18. I am 38 years old. I am hoping the increased risk for trisomy came from my low protein level and age but I can't help freak out. I have a CVS scheduled for Monday. Anyone else been through this?