NIPT results

I had it done almost a week and a half ago I got the results on Friday and the most important thing is that the text was normal But it said "sex chromosomes (XX). Results suggest that the baby is most likely a girl." 
So my question is what are the odds that it's a boy. I recently had a daughter that is now 21 months and I feel totally different from when I was pregnant with her.  Hope someone can help. Thanks