Taking contraceptive pills is relatively safe method, mainly try to take orally on an empty stomach, warm water delivery, the relative ingestion of potency will be higher, the contraceptive success rate will also be higher. Different contraceptive pills other requirements are different. 1. Emergency contraceptive pills: the so-called safety of taking emergency contraceptive pills is to try to improve the success rate of contraception, so it is recommended to try to take as early as possible. The sooner the better within 72 hours after sex, the lower the failure rate. 2. Short-acting contraceptive pills: the main thing is to eat at a relatively regular time every day, and must try to avoid missed doses. 3. Long-acting contraceptive pills: relative side effects are relatively large, pay attention to six months after stopping the drug to prepare for pregnancy, you can stop taking short-acting contraceptive pills for six months. All contraceptives have different degrees of side effects, so be sure to pay attention to their liver and kidney function, whether there is a pre-thrombotic state, breast abnormalities and so on.