Loestrin 24 Fe and moderate acne

I'm 16 and was put on this for very painful cramps. I've only been on it two weeks. I was told to take it in the evening. The first several days I was nauseous 24 hours a day, but never actually threw up. I don't usually eat in the evening, so I was taking it on an empty stomach, which I now realize was causing the nausea. So now I make sure to eat something with the pill, and I haven't had the nausea. Of course, that could also be because my body has just gotten more used to it. I've had mild to moderate acne since I was 10, and already my skin is clearer than its been in 6 years. I've taken very good care of my skin for years and haven't changed anything so I think it must be the BC. I can't say much else about it since I've been on it such a short time, but so far so good.