Regardless of the type of contraceptive pill contains hormone components, the normal ovarian secretion will have varying degrees of impact, the less harmful contraceptive pill can choose short-acting contraceptive pills. Short-acting birth control pills contain relatively small amounts of estrogen and progesterone, which have little effect on normal human ovarian function. Short-acting birth control pills are taken from the first day of menstruation for 21 consecutive days to wait for menstruation to come. The side effects of short-acting birth control pills are mainly characterized by irregular vaginal bleeding, nausea and other gastrointestinal reactions, and some women also experience dizziness. Contraceptive pills are divided into short-acting contraceptive pills, long-acting contraceptive pills and family visit contraceptive pills, contraceptive pills correctly taken contraceptive effect is still relatively ideal. When taking the pill, it is best not to take it at the same time with other drugs, so as not to affect the absorption and metabolism of the drug, reducing the effect of contraception.