Generally speaking, you can’t get pregnant on the ninth day of taking short-acting contraceptives, but there are individual differences. The short-acting contraceptive pill is a common contraceptive method for women of childbearing age, and it needs to be taken on time under the guidance of a doctor, and contraindications such as severe cardiovascular disease, liver and kidney insufficiency should be ruled out before taking the pill. The correct use of short-acting contraceptives, and there is no leakage of the phenomenon, can achieve the purpose of effective contraception, so taking short-acting contraceptives on the ninth day of intercourse is generally not pregnant. After taking short-acting contraceptives may appear nausea, vomiting, loss of appetite and other early pregnancy reactions and irregular vaginal bleeding, amenorrhea and other side effects, long-term use of the pill will also increase the risk of cardiovascular disease, so during the use of the drug should be regularly monitored blood lipids, coagulation, liver and kidney function, etc., and when there is an abnormality need to stop the drug in a timely manner in accordance with the doctor’s advice.