Q: For birth control, is a condom enough, or should I use something else–diaphragm, spermicide, sponge? Which is best?
Dr. Klein: High-quality latex condoms are very, very effective in preventing pregnancy when used correctly. That means using them every time, before the penis is put into the vagina, even for a second. Using condoms in combination with another method, such as foam or the sponge, increases your protection. It can also increase your sense of safety, which can increase sexual enjoyment.