NIPT gender test

Has anyone ever received an incorrect gender result through NIPT testing? We got our results and it said boy ( I have an 18 month old son already). I am thrilled but just can’t shake the feeling that it’s girl- I really felt strongly that it was a girl this time. This pregnancy has been so different compared to my previous one. I was breastfeeding for about a month into my pregnancy, wondering if that could somehow skew the results I’ve heard sometimes the Y chromosomes can hang around in a woman’s body for things such as breastfeeding. Just curious if anyone has gotten a boy result and actually had a girl?