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 Frontiers Progress in the study of the effects of selective serotonin reuptake inhibitors (SSRIs) on the reproductive system Frontiers Mechanisms of endometrial aging: lessons from natural conceptions and assisted reproductive technology cycles Can Taking Vitamins Delay Your Period? OmegaQuant Does Glutathione Cause Weight Gain? Myth Vs Science Plixlife