Many women suffering from irregular menstrual cycles due to PCOS have testified to Glutathione helping them regularize their cycle, bringing it back to its normal rhythm. Do you have a Late again? Can Taking Vitamins Delay Your Period? OmegaQuant 5 The role of retrograde menstruation, iron, and oxidative stress in Download Scientific Diagram Can Periods Be Delayed Intentionally? Yes, they can. The most commonly used medications are progesterone based hormones, such as: Norethisterone Medroxyprogesterone acetate These are usually started 35 days before the expected date