98% isn't "pretty high".... your NIPT is not wrong
From what my doctor told me a boy result is pretty accurate. The way he explained it is sometimes a girl result could have some question marks since there is a margin of error where your blood could be tested vs babies. But with a boy if you never had a Y chromosome and the results show that you pretty much are having a boy cause that y chromosome wouldn't show up. I think it is pretty accurate though from everyone I talked to who even had a girl result! I am also having a little boy!
I haven’t seen it be wrong but this is my fear with the testing too.