Job..

So, I work at a daycare and I get paid every two weeks. Well we get an hour lunch everyday so that would make 70 hours on my check. Well it so happens that my boss has put me down for 52 hours and I haven't missed any work. This is the second it has happened. I talked to her about it the first time and she had no explanation about it. However, this second time around, I'm very livid and I'm on my last nerve. As I was the first time but now I'm more livid. I'm definitely going to turn her in. But what else do y'all think I should do?