How to prevent a woman from getting pregnant

　　1. Condoms:

　　1. Principle: It is a cylindrical torture object made of latex. It is put on the erect penis during sexual intercourse to prevent sperm from entering the vagina and prevent sexually transmitted diseases or other infections.

　　2. Notes:

　　A. Unpack from the edge to avoid damaging the condom from the middle.

　　B. After unpacking, gently squeeze out the condom with your hands.

　　C. After erection, put it on the penis. First, flatten the mastoid at the front end and then put it on.

　　D. After putting it on, slowly unfold it with your fingertips to avoid contact with your tips. Use it every time you have sex.

　　E. ejaculation You should immediately hold the open end of the condom with your hands and pull the penis out of the vagina to prevent semen from overflowing into the vagina.

　　3. Effect: If used correctly, it can reach more than 90%.

　　4. Notes:

　　A. After storage for two years, it is best to store it in a dry and cool place.

　　B. Do not leave it in your wallet for a long time, as temperature friction may cause the condom to break.