Chinese gender chart

What do you guys think about it? I did it a whole bunch of times and I kept getting a boy. Just last week my MIL was telling at the girls in the family (her two daughters and me) what our babies would be. One of her daughters was gonna have a girl if she got pregnant again, and the other girl would have a girl when she got pregnant, and I will be having a boy soon. So when I checked the Chinese ended chart, I really freaked out. What do you think?