###Human: Is it safe to take Krimson 35 to regulate periods? ###Assistant: Hello. With your history, it seems that you need to decrease your weight which is the single most important factor in your menses. There are others but first, we have to control this. Yes, of course with irregular menses it can be difficult to get pregnant. No need to start Krimson 35 (Cyproterone Acetate and Ethinyl Estradiol) but need to do some test may be. And try to reduce weight. From history, it seems that you have PCOS. Do one sonography and consult a nearby gynecologist for a good advice. Drink more water.