If you are thinking about having sex for the first time or you
already are having sexual intercourse, you should know about
preventing an unplanned pregnancy. Although most methods depend on
the girl to do or take something, it is important for guys to
understand what is involved so that they can support their
girlfriends. Also, don't forget that it is only the condom that
can prevent sexually transmitted diseases (STDs).
Deciding to Have Sex
No method of birth control is 100% effective. Unless you decide
not to have vaginal sexual intercourse, there is always some risk
of pregnancy.
Many sexual activities are almost always safe without having to
take any special pregnancy precautions. These include holding
hands, hugging, touching, kissing, mutual masturbation, and oral
sex. Still, some teens decide to also have sexual intercourse.
Having sex can be a very loving and special experience between two
people. However, you should think about several important issues
before you decide to have sex. Not only might sex give you a
sexually transmitted disease or cause pregnancy, but you also can
get hurt emotionally because of the strong feelings involved.
Decide ahead of time what is right for you. Find an adult with
whom you can discuss your feelings and opinions, and ask
questions. Although it is sometimes awkward to start the
conversation, you can talk with your parents. You might also speak
with your healthcare provider, school counselors, teachers, or
adult relatives. You can usually discuss issues with these adults
confidentially.
Common Birth Control Methods
There are two main types of birth control:
- Hormone methods. Some common hormone methods include: birth
control pills, shots, the ring, the patch, and implants. The
hormones stop the egg from leaving the ovary and make the
mucus in the vagina too thick for sperm to move in. They
prevent pregnancy 99% of the time.
- Barrier methods. The condom is called a barrier method because
it blocks the sperm from getting to the egg. If used
correctly, condoms prevent pregnancy 85% of the time. The
condom is very effective at preventing STDs, but hormonal
methods are better for preventing pregnancy.
Birth Control Pills: Birth control pills must be taken once every
day. Many women like them because they allow them to know exactly
when they are going to have their period. Usually periods are
lighter, shorter, and have less cramping than before they started
taking these pills. All medicines have side effects, so you need
to talk with your healthcare provider about possible side effects.
If you have a problem, usually your healthcare provider can
prescribe a different one and that takes care of it.
Injections: Depo-Provera shots are injections of female hormones.
Shots are given in a woman's arm or buttocks every 3 months. You
don't have to think about taking a pill every day, and you are
protected from pregnancy for 3 months until you get the next shot.
Usually the shot area is not sore. Most women have irregular
periods while they are using Depo-Provera.
Vaginal Ring: The vaginal hormonal ring, also called "NuvaRing" or
"ring" for short, is about 2 inches across, and is as flexible as
a rubber band. You insert the ring into your vagina like a tampon.
Once in place, the ring stays in your vagina for 3 weeks at a
time. The ring releases similar hormones as the birth control
pill. After 3 weeks, you remove the ring. You will then have a
period, and insert a new ring one week later. The advantages are
that you need to remember to do only 2 things: Insert the ring
every month, and then remove it 3 weeks later.
The Patch: Ortho-Evra, or "the Patch" contains hormones, though
the patch has 60% more estrogen than the pill. A patch, about 2 X
2 inches square, releases hormones slowly through the skin. It is
placed on the abdomen, buttocks, shoulder, or upper arm. It needs
to be changed once a week. A new patch is put on weekly for 3
weeks in a row, and the old patch removed. You do not put on a
patch in the 4th week, and will then have your period. The patch
can be worn during showers/swimming, and it rarely falls off. Some
people experience mild skin irritation. Because the patch has more
estrogen than the pill, women at high risk for blood clots need to
pay attention to this potential side effects.
Implantable Hormones: Implanon is the only implantable hormone
available. It suppresses release of hormones from the pituitary
gland to prevent ovulation and pregnancy. Implanon is a small rod,
about 3 inches long, inserted by a healthcare provider into the
upper arm. Once inserted, there is a steady release of hormones
that lasts for 3 years. The advantage of this method is that once
inserted (a minor surgical procedure), you don't have to think
about taking birth control for 3 years. Women may have irregular
periods on occasion, more so than with other hormonal methods.
Condoms: There are two types of condoms, the male condom (by far
the most common) and female condoms (available, but not used as
regularly. Condoms help prevent pregnancy and if used correctly
can prevent most sexually transmitted infections. Condoms are sold
in drug stores, and may also be available at your healthcare
provider's office. Condoms are placed on the erect penis before
the penis is inserted in the vagina.
- To use a condom:
- Hold the condom at the tip to squeeze out the air.
- Roll the condom all the way down the erect (hard)
penis. Do not try to put a condom on a soft penis.
- After intercourse, hold the condom at the base of the
penis while the penis is still erect, and pull the condom
and the penis out of the vagina at the same time.
- If the woman also puts spermicidal jelly or foam (available in
the drug store without a prescription) inside her vagina right
before sex, it helps make the condom method even better at
preventing pregnancy. The jelly can kill sperm, but it doesn't
work if used without a condom.
- Never use the same condom more than once. It is a good idea to
have two condoms available in case one breaks.
- Buy latex condoms. Never use condoms made from animal skins
because they can leak.
- If a condom breaks, as soon as you realize it take it off and
put on another one. If you don't have another condom, stop
having sexual intercourse until you can get another.
- The man should pull out of his sexual partner while his penis
is still hard. If his penis gets soft first, the sperm can
leak out of the condom.
- If you use a lubricant with condoms, make sure it is water
based (like K-Y jelly). Do not use Vaseline or Crisco; these
can cause the condom to break.
- Some condoms are lubricated with a chemical, Nonoxynol-9,
which helps kill some of the germs that cause STDs. But it
doesn't matter which kind you use as long as you use a condom
every time you have sex.
There is a female condom, one that lines a woman's vagina, but it
is more difficult to use. Talk with a healthcare provider or other
adult who knows how to use it before you try it.
The "Morning-After Pill"
You may have heard about Emergency Contraception (EC), also known
as the "morning-after pill." This type of birth control is
sometimes used in an emergency. For example, it might be used when
a condom has broken. EC contains progesterone, one of the common
hormones used in birth control pills, but at a higher dose. It is
important to understand that EC works by slowing down the movement
of the egg and sperm, so they don't ever meet. EC does not destroy
an embryo so it is not a medical abortion.
Emergency contraception can't prevent all pregnancies, but it can
help. EC is most effective if used within the first 24 hours, but
can be used up to 5 days after unprotected sexual intercourse. In
some states, EC is sold over the counter. In most states, however,
you need a prescription from a healthcare provider. Call your
healthcare provider's office after you have had unprotected sex
and ask for a prescription.
Other Information About Preventing Pregnancy
- The "withdrawal" method, where the guy pulls his penis out of
the vagina before he ejaculates, is not a good way to prevent
pregnancy. Sperm generally leaks out of an erect penis before
a guy ejaculates, so even if he does "pull out", sperm is
introduced and a woman can get pregnant.
- The "rhythm" method is where a couple has sexual intercourse
only during certain times of the menstrual cycle. During
certain times in the cycle, a woman is not as likely to get
pregnant. This is not a very reliable method of birth control.
This method is mostly used by married couples and is difficult
to learn.
Written by J. Todd Jacobs, MD.
This content is reviewed periodically and is subject to
change as new health information becomes available. The
information is intended to inform and educate and is not a
replacement for medical evaluation, advice, diagnosis or
treatment by a healthcare professional.
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