Clinically, there is no most effective and safest contraception, because no contraceptive measure or method can achieve 100% safe contraception; however, condom contraception, intrauterine device contraception, oral contraceptive pills and other methods can be chosen. 1. Condom contraception: both husband and wife can wear condom before sex, through the application of condom can achieve effective contraception, but also can prevent some sexually transmitted diseases. 2. Intrauterine device (IUD): women go to the obstetrics and gynecology department of regular hospitals to get a contraceptive ring 3-7 days after their menstrual period is cleared, and the contraceptive ring can be used as an effective contraceptive method. 3. Oral contraceptive pills: such as oral emergency contraceptive pills (levonorgestrel tablets, etc.); oral short-acting contraceptive pills (deoxyprogesterone ethinyl estradiol tablets, etc.), oral long-acting contraceptive pills (compound 18-methyl ethinyl estradiol tablets, etc.). If menopause occurs for more than 10 days, you need to go to the hospital for examination to determine whether you are pregnant. The use of specific drugs should be under the guidance of a doctor, and should not be taken on its own.