Period acne?

So I’m supposed to be getting my period soon and every time I get my period I get really bad acne either on my cheeks, forehead, or chin area. I’ve tried several things for the acne but some of them have even left dark spots on my face. I’ve tried every high end & low end product you can think of and the pimples do not go away! Any recommendations on what I can use to get rid of the pimples & even the darks spots?