Generally speaking, taking short-acting contraceptive pills will not affect the second month’s vacation, but taking emergency contraceptive pills will affect the second month’s vacation, but there are individual differences. The period refers to menstruation, taking the pill is an effective method of contraception, should be taken under the guidance of a doctor, before using the drug to rule out contraindications such as hepatic and renal insufficiency, cardiovascular disease and other contraindications. Although the short-acting contraceptive pill is a hormonal drug, but the hormone dose is not large, so standardized use of short-acting contraceptive pills generally will not affect the next menstrual period. When taking emergency contraceptive pills, due to the large dose of hormones, so it will affect the second month of menstruation, but also may cause menstrual disorders and other side effects, generally do not need to deal with, and will return to normal in about 2 months after stopping the drug. However, when menstruation occurs more than 1 week after taking the pill, it is also necessary to exclude the possibility of pregnancy.