My NT scan done at 12 weeks is normal, but I have anterior marginal placenta pervia. I did my double marker test at 12.4 weeks. All my screen result is negative and risk result is low.
However my PAPP is 481 mU/L or 0.18 MOM and free
beta HCG is 17.5 ng/mL or 0.43 MOM.
Are all the parameters normal or should I go for NIPT?