My 16week gender scan matched my sneakpeek blood test but doesn’t match the nub theory. I’ve asked them to double check at every scan I’ve had since though so now have a collection of scan pics with a close up of his bits labeled “BOY!!!! >>>>>”
even at a 4D scan where she actually checked the gender in 4D she just put on the report in her opinion baby is a boy, still wouldn’t give 100% guarantee it was, even though it was very obvious.
I don’t think sneakpeek is even that reliable because if you test too early it can give a false girl result (you’re obviously past that) and if there’s any sort of contamination such as male dna from under your nail as the blood runs down which is really hard to avoid then you can get a false boy. I think the NIPT test is the only accurate test as it’s done in a sterile environment straight from your vein whereas sneakpeek is at home from your finger.