Sneak peak girl result

Kyndall

I think I took sneak peak back around 14 or so weeks and I’m 20+1 now. Due to my insurance not covering my ob bills and the ob wanting 4,000 dollars up front I can’t see them until I switch to my husbands work insurance in dec/Jan. So since I can’t confirm gender for a while I’m wondering is it possible to get a false girl result?