30 weeks

It's a weird thing to ask , maybe because I been watching too much shows , I'm 30 weeks pregnant expecting a baby boy and had 2 genetic screens for both trimesters n everything is good  , is there possible for my third trimester that my baby could have any genetic problems ? Idk I'm nervous , & I had a miscarriage last year but they told me she has problems on my first trimester . I just need to stop watching these shows