Quad Screen

I had my Quad screen at 16 weeks it came back with a positive result for Down’s syndrome. It said I had a 1 in 234 for maternal and 1 in 722 for my age. I’m 30 I was 29 when I got pregnant. We had the anatomy scan at 20 weeks she came back with no markers for downs. They offered the Maternit21 but we declined any further testing. I’m 33 weeks and now it’s starting to freak me out. We would love her regardless but I can’t stop thinking about it.