I just found out the gender from my MaterniT21 results. I thought it just checks for Trisomy 21 and 18 and when the Dr asked if I wanted to know the sex I was surprised. It can tell you whether or not there is a Y chromosome present. In my case it didn't so I am having another girl. Its 99% accurate so of course there is a chance its incorrect. Am I the only one who didn't know this? As anyone else had the MaterniT21 tests?
Now I just have to get over the shock of having another girl!