First, short-acting contraceptive pills, in the absence of contraindications, can be used to regulate menstruation, because short-acting contraceptive pills are a combination of estrogen and progestin, after taking it will make the menstrual cycle regular, generally in the clinical advice to take three months, after stopping the drug will basically return to normal menstrual cycle. Secondly, the combination of GEL and progesterone, clinically known as artificial cycle therapy, can also make the menstrual cycle regular, and continuous use of the pill for about three months to six months to regulate menstruation. For example, if you have uterine fibroids, you should not use these drugs to regulate your menstruation. If you have mammary gland hyperplasia or a tendency to have venous thrombosis, you should not use these drugs to regulate your menstruation.