NIPT blood work

Eri❤️

Have any of you guys have got the NIPT test and get the gender wrong ???? If so how many weeks where you if for the sex wrong .. I got my NIPT at 9 weeks and I being reading it can be wrong when is done so early. I have read lots of stories and where they get it wrong but also that this test it’s so accurate.. But how can it be wrong to some people if is so accurate????