
Introduction
This information will help you understand your choices,
whether you share in the decision-making process or rely on your doctor's
recommendation.
Key points in making your decision
Birth control
methods allow a woman or a couple to choose whether or when to have a child.
Consider the following when making your decision:
- Permanence. If you are
certain that you don't want children (or more children), you might consider a
permanent method of birth control, such as female
tubal ligation or implants or male
vasectomy.
- Effectiveness. Consider how important it is to you to avoid
pregnancy, and then look at how well each method works. Hormonal implants and
injections (Depo-Provera) and the hormonal and copper IUDs are the most
effective. Birth control pills (both estrogen-progestin and progestin-only),
patches, and rings are highly (but slightly less) effective. Barrier methods
such as condoms, diaphragms, and spermicides are only moderately effective. See
a reliability table for details on each
method.
- Convenience. Some methods require
more effort than others. Do a
reality check by asking yourself how likely you are to
use the method consistently. Answer whether you are willing to interrupt
lovemaking, to abstain from sex during certain times of the month, or to
remember to take a pill every day.
- Sexually
transmitted disease protection. The most highly effective hormonal and
IUD methods do not protect you from
sexually transmitted diseases (STDs).
Condoms are the best available protection you have
from STDs. But condoms alone are not a highly effective birth control method.
To avoid both STD infection and pregnancy, be sure to combine a condom with a
more effective birth control method.
- Health
risks. If you have health risks, some birth control methods may not be
right for you. For example, combined (estrogen and progestin) birth control
methods are not recommended for women older than 35 who smoke. Other conditions
that may limit your choices of birth control include having
migraines, heart disease,
high blood pressure,
blood clots, or
diabetes.
- Return to fertility. If you plan to have
children within the next year or two, you may want to avoid the Depo-Provera
(progestin-only) shot, which can stop your monthly periods and delay your
return to fertility.1 Taking estrogen-progestin for a
long time can also make your periods stop. You might not start periods again
for several months after you stop taking hormones. But it isn't permanent. You
will start ovulating and having your periods, and your fertility should get
back to normal.
- Other benefits. Some birth
control methods have beneficial side effects.
Combination hormonal methods (estrogen and progestin)
can improve acne. Both combination and
progestin-only methods reduce menstrual cramping and
flow. In fact, with the Lybrel combination pill, the Depo-Provera shot, or the
Mirena IUD, your period may stop altogether.
Medical Information
What are the different methods of birth control?
Sterilization is a surgical procedure done for men
or women who decide that they do not want to have any or more children.
Sterilization is one of the most effective forms of birth control.
Sterilization is intended to be permanent, and while you can try to reverse it
with another surgery, reversal is not always successful. Methods
include:
- Tubal ligation or implants. The
fallopian tubes
, which carry the eggs from the ovaries
to the uterus, are tied, cut, or blocked. A new type of procedure, using a
device (called Essure) to block the fallopian tubes, is done without an
incision and on an outpatient basis. - Vasectomy. In
this minor procedure, the vas deferens—the tube that carries sperm from the
testicles
to the seminal fluid (semen)—from each
testicle is cut and blocked so that
sperm
are no longer present in the semen.
Hormonal methods are very
effective means of birth control. Hormonal methods use two basic
formulas:
Compare the:
An
intrauterine device (IUD) is a small device that is
placed in
your uterus
to prevent pregnancy. IUDs usually contain copper (Copper T
380-A) or a hormone (the Mirena IUD, which releases a progestin called
levonorgestrel). IUDs can provide birth control for 5 to 10 years.
Barrier methods include the diaphragm,
cervical cap, Lea's Shield, male condom, female condom, spermicidal foam,
sponges, and film. Barrier methods prevent sperm from entering the
uterus and reaching the egg. Typically, barrier methods are not highly
effective, but they generally have fewer side effects than hormonal methods or
IUDs. Spermicides and condoms should be used together or along with another
method to increase their effectiveness. Barrier methods can interrupt
lovemaking because they must be used every time you have sex. (A diaphragm,
cap, or shield can be put in a few hours beforehand, if you can plan
ahead.)
Fertility awareness, or natural family
planning, requires that a couple chart the time during a woman's
menstrual
cycle
that she is most likely to become pregnant and avoid intercourse
or use a barrier method during that time. Fertility awareness is not a highly
effective method of preventing pregnancy.
If you are at risk of
getting or spreading a
sexually transmitted disease (such as
genital herpes,
chlamydia, and
AIDS), use a condom. To most
effectively prevent pregnancy, combine a condom with a highly effective birth
control method.
How effective are birth control methods?
Hormonal
implants, injections (Depo-Provera), and the hormonal and copper IUDs are
very highly successful methods of birth control. These
methods are 97% to 99.9% effective. That means fewer than 1 to 3 women out of
100 women who are using these methods will become pregnant during the first
year of use.
Birth control pills (both combination and
progestin-only) have a high success rate of 92%. But if
taken properly (every day or at the same time every day), birth control pills
can be highly successful. The hormonal skin patch and vaginal ring are thought
to be about as effective as birth control pills, but how well they actually
work has not been well studied.
Barrier methods, such as the
diaphragm or condom, are moderately successful at
preventing pregnancy. The diaphragm and cervical cap are 84% effective for
women who have not had children or who have had a
cesarean section. Women who have delivered children
vaginally have lower rates of success with diaphragms and cervical caps. They
are more effective when used consistently and fitted correctly, although not
all women are able to achieve this.
Doctors often recommend that
you use spermicides and condoms together or along with another method to
increase their effectiveness. The male condom is 85% effective. The female
condom is 79% effective. Spermicide is 71% effective. In real numbers, this
means that of women who use male condoms alone for birth control each time they
have sex, 15 out of 100 will become pregnant in the first year of use. Consider
carefully whether this risk is acceptable to you.
Using fertility
awareness takes organization, good record keeping, close observation of your
body changes, and cooperation from your partner. Even when practiced carefully
and consistently, fertility awareness is not a reliable method of birth
control. Of women who use fertility awareness for birth control, 20 to 25 out
of 100 will become pregnant in the first year of use.
See a table
detailing the
failure rate of each method.
Consider
how comfortable you feel about using a particular method of birth control. If
you are not comfortable or will not consistently use a birth control method for
any reason, that method may not be effective. A
reality check for birth control methods can help you
determine which method is right for you.
Patch
warnings
- The patch delivers more estrogen than the low-dose birth
control pills do. The U.S. Food and Drug Administration (FDA) warns that women
using the patch are slightly more likely to get dangerous blood clots in the
legs and lungs than women using birth control pills. So talk to your doctor
about your risks before using the patch.
- Direct sunlight or high
heat can increase, then lower, the amount of hormone released from a patch.
This can give you a big dose at the time and leave less hormone for the patch
to release later in the week. This increases your risk of pregnancy.
Avoid direct sunlight on the hormone patch. Also avoid
using a tanning bed, heating pad, electric blanket, hot tub, or sauna while you
are using a hormone patch.
Spermicide warning
- Most spermicides contain a chemical called
nonoxynol-9 (N9). The U.S. Food and Drug Administration (FDA) warns that N9 in
vaginal contraceptives and spermicides may irritate the lining of the vagina or
rectum. This may increase the risk of getting HIV/AIDS from an infected
partner.
What are health risks that may affect my choices?
Some health conditions may limit your choice of birth control methods.
Discuss appropriate methods of birth control with your doctor if you:
- Have a chronic illness, such as
diabetes or heart disease.
- Have a history
of cardiovascular problems, such as
high blood pressure (hypertension),
stroke,
high cholesterol, or
blood clots.
- Have a history of nervous
system problems, such as seizures or headaches.
- Have a history of
migraines.
- Smoke
cigarettes.
- Have a history of cancer.
- Use prescription
medicines. Certain antibiotics,
antiretrovirals, and anticonvulsants, as well as
St. John's wort, make certain hormonal birth control
less effective.2
- Are overweight. The pill
and the patch may not work as well if you are overweight, so talk with your
doctor about the type of birth control that will be best for you.
Bone thinning. Using Depo-Provera
for 2 or more years can cause bone loss, which may not be fully reversible
after stopping the medicine. This concern may be greatest during the teen
years, when young women should be building bone mass. Depo-Provera use is not
recommended to be used for longer than 2 years unless you are protecting your
bones with daily calcium and regular weight-bearing exercise, such as walking
or running.3, 4 Talk to your
doctor about your risks if you have been using Depo-Provera for longer than 2
years.
Sexually transmitted disease. If a
sexually transmitted disease is present at the time an IUD is inserted, a woman
is at increased risk for
pelvic inflammatory disease (PID) in the 20 days after
insertion. Pelvic inflammatory disease can lead to
infertility.5 This is why a
test for STDs is important before inserting an IUD.
For more
information, see the topic
Exposure to Sexually Transmitted Diseases.
Will some temporary birth control methods prevent me from having children when I want them?
Consider how soon, if ever, you would
like to become pregnant. Except for sterilization methods, which permanently
prevent pregnancy, all currently available birth control methods allow you to
become pregnant again, although some may cause a delay.
Depo-Provera. For some women, it may take 3 to 18 months to
get pregnant after the last Depo-Provera (a progestin-only hormonal method)
shot.
Implanon. You can get pregnant
right away after you have the implant removed. The implant provides birth
control for 3 years and must be inserted and removed by a trained health
professional.
The estrogen-progestin pill.
If you take monthly cycles of birth control hormones for a long time, your
periods might stop. You might not start periods again for several months after
you stop taking hormones. But it isn't permanent. You will start ovulating and
having your periods, and your fertility will get back to the pattern you had
before you started the pill. Since it is common to
ovulate before your first period comes back, it is
possible to get pregnant sooner than you expect. So if you aren't in a rush to
get pregnant, use some form of birth control after you stop birth control
hormones.
What can I do if I have unprotected sex?
Emergency
contraception is a backup method for unprotected intercourse. This would
be when you have not used a birth control method or have reason to believe that
your method has not protected you as it should. For example, you could use
emergency contraception if the condom breaks during sex.
Your Information
One method may work better than others for a woman or for
a couple. You may use more than one method at a time, especially if you need
sexually transmitted disease protection and highly
effective birth control. And birth control needs change over time. Consider the
information below as you make your decision.
Deciding about birth control| Method | Reasons to use the
method | Reasons not to use the
method |
|---|
Fertility
awareness | - You and partner can be diligent about
charting fertile times and either using barrier methods or not having sex
during those times.
- Your birth control options are limited by your
moral beliefs or your religion's laws.
| - Not highly reliable (75% effective, or 25
pregnancies out of 100 women each year)
- Requires close observation
of body changes and abstinence or use of barrier methods during fertile
times
- You are looking for protection from sexually transmitted
diseases. This method provides no protection.
|
Condoms (male or female) | - Reduces risk of sexually transmitted
diseases (STDs)
- You want a method that is inexpensive and widely
available.
| - Not highly reliable (79%–85%, or 15–21
pregnancies out of 100 women each year)
- Interrupts lovemaking and
decreases sensation
- Some men don't like or are not willing to
use
|
Female barriers (diaphragm, cap, Lea's Shield,
sponge) | - You have health risks, such as having
migraines or being a smoker older than 35, and can't use other
methods.
- Your relationship will comfortably and consistently allow
their use.
- You want a method that is available without a
prescription (sponge).
| - Can interrupt lovemaking and be messy
- Not highly reliable (60%–85%, or 15–40 pregnancies out of 100
women each year)
- You are looking for protection from sexually transmitted
diseases. This method provides no dependable protection. Using spermicide may
actually increase your risk for getting HIV/AIDS.
|
Combination estrogen and progestin hormone
methods (pill, ring, patch) | - You want a method that doesn't interrupt
intercourse. Use once a day (pills), once a week (patch), or once a month
(vaginal ring).
- You need a highly effective method (92%–97% or 3–8
pregnancies out of 100 women each year).
- You want a method that
improves acne and reduces menstrual cramping and flow and premenstrual
symptoms.
- You want to have few or no menstrual
periods.
- Ring and patch: You don't have to remember to take a pill
every day.
| - You have health risks, such as being a
smoker older than 35, or have
migraines,
high blood pressure,
stroke,
blood clots, liver disease,
heart disease, or
diabetes.
- Pills: You have difficulty
remembering to take one every day.
- Patch: You cannot avoid exposing
the patch to direct sunlight or high heat, which can make it less effective.
- Patch: You want a low-estrogen option. The birth control patch
delivers more estrogen than the low-dose birth control pills do.
- You are looking for protection from sexually transmitted diseases.
(Condoms are necessary for protection.)
- You experience side
effects, including nausea and vomiting, headaches, breast tenderness, or mood
changes.
- You are overweight. The pills and the patch may not work
as well if your
body
mass index is greater than 30.6, 7
|
Progestin-only pills, implant (Implanon), or
injection (Depo-Provera) | - You have health risks and can't use
combination hormonal methods.
- You need a highly effective method
(92%–100%, or 0–8 pregnancies out of 100 women each year).
- You
want a method that doesn't interrupt intercourse. You can use this method once
a day (pills), once every 3 months (injection), or once every 3 years
(implant).
- You are breast-feeding.
| - Pills: You must remember to take them at
the same time each day.
- Injections: You
don't like shots.
- Implant: You need to see your doctor to have
this inserted or removed.
- You are looking for protection from
sexually transmitted diseases. (Condoms are necessary for protection.)
- Depo-Provera use may increase your risk of chlamydia or gonorrhea
infection if you are exposed.8
- You
experience side effects, including breast tenderness, spotting, mood changes,
and weight gain.
- Injections: You need a long-term method. Using
Depo-Provera for 2 or more years can cause significant bone loss, which may not
be fully reversible after stopping the medicine.3
|
IUD | - You need a highly effective means of
birth control (more than 99%, or fewer than 1 pregnancy out of 100 women each
year).
- You have a low risk of having a sexually transmitted disease
infection (which could be carried into the uterus with IUD
insertion).
- You want a method that requires little effort. You do
not have to remember to take pills, and the IUD can prevent pregnancy for 5 to
10 years.
- Hormonal IUDs decrease menstrual flow and
cramping.
| - You are looking for protection from
sexually transmitted diseases. (Condoms are necessary for protection.)
- You find the IUD to be uncomfortable (more common in women who
have not had children).
- Copper IUD increases menstrual flow and
cramping.
|
Tubal ligation or implants or
vasectomy | - You are absolutely sure you do not want
children or do not want more children.
- You want a method that is
permanent.
| - You may regret your decision later (if
you are young, have few or no children, or are choosing sterilization for the
wrong reasons).
- Permanent (although vasectomy takes several months
after surgery before it is effective)
- You are looking for protection from sexually transmitted
diseases. (Condoms are necessary for protection.)
- You do not want to have a surgical procedure.
|
| | Are there other reasons you might want to use
a certain method? | Are there other reasons you might not want to
use a certain method? |
These
personal stories may help you make your
decision.
Wise Health Decision
Use this worksheet to help you decide if the method
you're considering is right for you. After completing it, you should have a
better idea of your priorities. Discuss the worksheet with your doctor.
Circle the answer that best applies to you.
| I do not want to have any (more) children and need
a permanent method of birth control. | Yes | No | Unsure |
| I absolutely cannot get pregnant right now, but I
do want a family some day. | Yes | No | Unsure |
| I need a birth control method that I don’t have to
think about every day or every time I want to have sex. | Yes | No | Unsure |
| I do well with birth control pills and can
remember to take one each day. | Yes | No | Unsure |
| I like the convenience of birth control pills, but
I cannot use estrogen (or I am over 35 and smoke cigarettes). | Yes | No | Unsure |
| I am not comfortable with hormonal birth control,
and I would prefer to use another method. | Yes | No | Unsure |
| I want birth control that will help with my acne
or cramps or allow me to have lighter, fewer, or no periods. | Yes | No | Unsure |
Use the following space to list any other important
concerns you have about this decision.
What is your overall impression?
Your answers in
the above worksheet are meant to give you a general idea of where you stand on
this decision. You may have one overriding reason to use or not use a
particular birth control method.
Check the box below that
represents your overall impression about your decision.
Leaning toward (you fill in) method | | Leaning toward (you fill in) method |
Return to the topic
Birth Control.
Effectiveness data
for birth control methods from:
U.S. Food and Drug
Administration (2003). Birth Control Guide. Available
online: http://www.fda.gov/fdac/features/1997/babytabl.html.