Glucose questions

So I did my 3 hour last Friday. I passed the fasting, 1 hour, and 3 hour. But my 2 hour was 158 and every where I’ve looked online said 155 or lower is passing. So if I failed just that one hour is that failing the whole test? Also my A1C was 5.3 is that high for a pregnant person? I am being switched to a new dr and won’t see them until Friday. So I don’t know what all this means and wasn’t sure if anyone on here knew.