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| Method | How it Works | Effectiveness | Availability | Protection against STD/HIV | Risks | Additional Info |
|---|---|---|---|---|---|---|
| Abstinence | Make a commitment to yourself not to have sexual intercourse. | 100% | No prescription needed | Yes, protects against all of them | None | Peer and significant other pressure may make it difficult. |
| Latex Male Condom | Applied immediately before intercourse; used only once and discarded. (See condom section). | With typical uses 86% With perfect use 99% |
Over the counter, Many places offer free or low cost condoms | Yes, however it only protects areas covered by condom | Latex allergy, can break if used improperly | Polyurethane condoms are available for people with latex allergy, but effectiveness is undetermined |
| Female condom | Applied immediately or a few hours before intercourse; used only once and discarded. | 79% | Over the counter | Yes, may actually provide more coverage than a male condom | May be uncomfortable at first | The female condom’s outer ring must stay outside of the vagina at all times so it should be held in place during insertion |
| Spermicides alone | Follow the directions on the box Usually applied before intercourse and left in after sex for up to 6 hours |
Around 74% | Over the counter various types: foam, film, sponge, gel, etc. | No, plus nonoxyl-9 may increase the risk of contracting an STD/HIV if present | Irritation, messy | Spermicides are more effective when combined with other methods |
| Diaphragm with spermicide | Inserted before intercourse and left in place at least six hours after. | 80% | Must be fitted/prescribed by a doctor. Can be used for several years | none | Irritation and allergic reactions, urinary tract infection | Can be left in place for 24 hours, with additional spermicide for repeated intercourse. |
| Cervical Cap with spermicide | Inserted before intercourse and left in place at least six hours after. | 60-80% | Must be fitted/prescribed by a doctor. Can be used for several years | none | Irritation and allergic reactions, may cause abnormal pap | May be difficult to insert; can remain in place for 48 hours without reapplying spermicide for repeated intercourse. |
| Oral contraceptives -- combined pill | Must be taken on daily schedule, (same time each day) regardless of frequency of intercourse. | Over 95% | Must be prescribed by a doctor. | none | Dizziness; nausea; changes in menstruation, mood and weight; rare side effects: cardiovascular disease, including high blood pressure, blood clots, heart attack and strokes.Risks are increased by smoking | It may take several different pills to find the one that is right for you. |
| Oral contraceptives -- progestin-only "mini pill" | Must be taken on daily schedule, regardless of frequency of intercourse. | 95% | Prescribed by a doctor. | none | Irregular bleeding, weight gain, breast tenderness, slightly increased chance of ectopic pregnancy. | This type of pill creates a layer of mucus around the cervix, providing a barrier. |
| Injection (Depo-Provera) | One shot every 3 months | 99% | Prescription | none | Irregular bleeding, weight gain, breast tenderness, headaches | Some women stop having periods. |
| Intrauterine Device (IUD) | A copper or plastic device is inserted into the uterus. | 98-99% | Prescription. After insertion by physician, can remain in place for up to one or 10 years, depending on type. | none | Cramps, bleeding, pelvic inflammatory disease, infertility, perforation of uterus | IUDs can be inserted up to one week after unprotected intercourse to prevent pregnancy. |
| Implants | Little rods that release hormones are inserted under the skin | 99% | Inserted by a doctor and lasts up to 3 years. | none | Pain, irritation, swelling, or bruising, Scarring Irregular bleeding, weight gain, breast tenderness, |
The new implant is called implanon and Norplant have been phased out |
| Vaginal Ring (Nuva Ring) | A flexible ring containing hormones is inserted into the vagina and left in place for 3 weeks | 99% | Prescription | none | Vaginal infections and irritation Vaginal secretion Headache, Weight gain, Nausea | It may be easier to use for people that can’t remember to take the pill |
| The Path (Ortho Evra) | A patch is applied to different areas of the body and changed each week. | 95-99% | Prescription | none | Blood clots, stroke and heart attacks and are increased if you smoke cigarettes. Rash/skin irritation | It is easier than taking the pill. If you place the patch in a visible area of the body, people will know you are on it. |
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