Using more than one condom at a time, whether you’re using a male condom or a female condom, is never a good idea. Why? When condoms rub together they can break or tear. Any break or tear, no matter how small, can let you or your partner get a sexually transmitted infection. It can also cause pregnancy. Condoms can also break if they’re old or if they’re not put on properly.
Putting condoms on wrong is the most common cause of breaking. A lot of guys think they know how to use a condom but they don’t! See the links below that teach how to use a condom correctly.
If you want to be extra careful in preventing pregnancy and STDs, use another form of contraception in addition to the condom, like a spermicide. Another option: using a hormonal method like birth control pills with a condom provides extra protection against pregnancy and STDs. Remember, condom use to prevent STDs is not only important for vaginal sex, but also oral and anal sex.