About half of all pregnancies are unplanned, says the American Congress of Obstetricians and Gynecologists. But women today have many safe and reliable choices if they want to prevent pregnancy. Birth control can be a medicine, device, or method. Test your knowledge of contraception by taking this quiz.
1. Which methods of birth control needs a prescription?
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Other methods that require a prescription include the vaginal ring, intrauterine device (IUD), Implanon (contraceptive implant), and injectable forms of contraception. Male and female condoms and spermicides don't need a prescription.
2. What do male condoms offer that other forms of birth control do not?
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Except for abstinence, latex condoms provide the best protection against sexually transmitted infections (STIs) such as AIDS and herpes. One drawback to condoms is that in some people, they may cause irritation or an allergic reaction (to the latex). Condoms are available over the counter and are used once, then thrown away.
3. Besides the condom, which is another barrier method of birth control?
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The diaphragm is available by prescription. It prevents sperm from entering the uterus. It is put in place before having sex and left in place for at least 6 hours afterward. It is used with a spermicide designed for diaphragms. It works less well for women who have had a vaginal birth, the FDA says. This is because childbirth stretches the cervix and vagina, making it more difficult to achieve and maintain a correct fit.
4. Which type of intrauterine device (IUD) is available?
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Two types of IUDs are available in the U.S.: hormonal and copper. An IUD must be put in place by a healthcare provider. But once that's done, the copper IUD can remain in place and is effective for up to 10 years. The hormonal IUD must be replaced every 3 or more years. The hormonal IUD may help decrease menstrual pain and bleeding. Although the IUD is convenient, it offers no protection against STIs and may contribute to pelvic inflammatory disease and infertility. The IUD usually is not recommended for women who have not had a child.
5. Which of these is a possible side effect of birth control pills?
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Other common side effects are breast tenderness and depression. Side effects usually decrease with time, as your body adjusts to the hormones. Birth control pills must be taken every day to be effective. They provide the hormones estrogen and progestin, hormones similar to those that a woman's body produces naturally. The hormones prevent ovulation and make the womb less receptive to pregnancy. Birth control pills do not protect against STIs. Hormones also can be injected to provide contraception, implanted in the skin, or placed on the skin with a special patch. Hormone injections are given every 3 months. The implant provides contraception for 3 years. The skin patch is replaced every week. Low-dose contraceptives now available have fewer side effects than do earlier versions, the FDA says. Women older than 35 who smoke and women with certain health conditions, such as a history of blood clots, breast cancer, or endometrial cancer, should talk with their healthcare provider before taking birth control pills. These forms of contraception may increase the risk for heart disease, high blood pressure, and blood clots.
6. How long is the vaginal ring left in place?
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The vaginal ring is a flexible, plastic ring that is placed in the upper vagina. The ring provides the same hormones that are in birth control pills. In this case, they are absorbed through the lining of the vagina. The ring remains in place for 21 days. It is then removed for 7 days to allow for menstruation, and then a new one is put in place. Like other hormonal methods of contraception, it offers no protection against STIs.
7. Which of these methods is called natural family planning?
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Natural family planning, also called fertility awareness, involves tracking body functions as they change through a woman's menstrual cycle. Natural family planning uses the menstrual cycle, changes in cervical mucus, or changes in body temperature to detect ovulation, which is when a woman is fertile. Studies have shown that a woman is fertile from 5 days before ovulation to the 24 hours after ovulation. On days when a woman is fertile, she and her partner abstain from sexual intercourse or use a barrier method to prevent pregnancy. These methods work if used consistently and correctly, experts say. If used "perfectly," the basal temperature method, for example, still will result in only 2 pregnancies out of 100 women. With a typical use of this method, as many as 20 women in 100 will become pregnant. Your healthcare provider can give you more information on natural family planning.
8. Which of these methods of sterilization is permanent?
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Sterilization is a surgical procedure that blocks the pathway of the egg or sperm, the ACOG says. In women, the fallopian tubes are cut, tied, burned, or clipped. Any of these methods prevents the eggs from traveling from the ovaries to the uterus. In men, the vas deferens is cut so that sperm cannot mix with semen. Both methods are permanent forms of birth control. The ACOG notes that surgery to reverse the sterilization or assisted reproductive technology to get pregnant can be expensive and may not be successful.
The only safe sex is no sex, most doctors say. But certain precautions and safe behaviors can reduce a person's risk of contracting a sexually transmitted disease.
