Breast enlargement

This is a bit weird, because a lot of women I know don't mind if their breasts get bigger, but I do. I noticed that mine got bigger after a few months on Certrazette, they also hurt quite a bit. They don't hurt so much now, I've been taking it for nearly 6 months, but my breasts are still much larger than they were. I would like to know if anyone knows whether or not they will go back to normal without having to stop taking this pill, because other than this problem, Certrazette works for me and I don't want to have to try yet another contraceptive.