If you take the short-acting contraceptive pill according to the instructions, and there is no leakage during the period, the chances of getting pregnant after intercourse are not great, but if there is a leakage, the chances of getting pregnant will be increased. Short-acting contraceptives are estrogen-progestogen composite preparations that not only prevent pregnancy, but also regulate the menstrual cycle. If you take short-acting contraceptives correctly according to the instructions, and do not miss any doses during the period, the chances of contraceptive success after intercourse are greater, and the chances of a woman getting pregnant are smaller. Short-acting contraceptive pills should be taken from 2 to 5 days after menstruation, and should be taken continuously for 22 days. Missed doses during this period may lead to contraceptive failure and increase the chances of pregnancy. Short-acting contraceptives should be used in accordance with medical advice, do not miss the dose, once missed should be taken as soon as possible to make up for the dose, after making up for the dose should also be used at the same time with other contraceptive measures, such as condoms, so as to reduce the chances of pregnancy.