In addition some of these means of contraception used to prevent the spread of many sexually transmitted diseases (STDs), including HIV. Therefore it is important to know.
Contraception: High to low efficiency
Oral contraceptives
It is the famous "pill" for women who eat not become pregnant. If it meets the dailies works in 99.7%. However, if you forget to take it one day (or more) is not consumed at the same time or immediately after swallowing vomit, that capacity drops to 92%.
There are different types of birth control pills. Each has a varying load hormones. The strongest containing estrogen and milder (known as mini-pills) only progestin.
The downside of this system is that by not using a condom during sex, increase the chances of getting an STD. The good thing is that the letter referred to the date of menstruation and can be planned from vacations to a romantic date.
We recommend you read: According to one study, oral contraceptives may prevent one type of uterine cancer
Vaginal ring
Efficiency is equal to that of the pill but with the difference that is inserted into the vagina. Will gradually releasing hormones and must use a new plastic ring every time you start a cycle (after the period).
Intrauterine device
Popularly known as "IUD" is the preferred method. Unlike what is believed abortion is not nor should it be used only by women who were already mothers.
It may be copper or hormonal (in this case also regulates menstruation) and places the gynecologist. It has an efficiency of 99%.
Male condom
If used properly the possibility of pregnancy it is reduced to 2% but the problem is that many men put "late", ie, when it has already left the penis precum. It is also common to break fingernails, rings, teeth or piercings. This lowers the effectiveness of male condoms to 85%.
Moreover, it is important to remove once intercourse, do not stay inside the vagina and not using a condom is "defeated" just (last 5 years from the time of manufacture. After lose their flexibility and strength).
Injectable progestins
To choose one of the options available (monthly or quarterly application) must consult with the gynecologist. The reliability of this method is quite high: between 97 and 100%.
Morning-after pill
Doctors said it should only be used in emergencies and not repeatedly. The World Health Organization does not consider this pill as a contraceptive but as abortion.
The action depends on the stage of the cycle of women. That is, it can prevent ovulation and egg nidation. The truth is that prevents pregnancy in 85% of cases.
Transdermal patch
388988 01: (FILE PHOTO) A model wears a birth control patch That May be an alternative to birth control pills Suggests it's maker. The patch is worn on the skin and delivers a hormone That produces the same results as the pill, Researchers claim. The Food and Drug Administration approved the Ortho-Evra patch for women November 20, 2001. (Photo by Getty Images)
For those women who do not want a plastic ring in your vagina or forget to take the pill there are some species of bandages or square strips of less than 5 cm side.
The hormone content soaks slowly through the skin pores.
It is applied in any area of the body, which must be clean, dry and free of creams at the time of placement.
Diaphragm
It's like a latex or silicone plug that is inserted into the vagina to prevent sperm from reaching the cervix. There are various sizes and the doctor is the one who determines the most suitable for every woman.
It must be used with a spermicide and removed eight hours after intercourse. The efficiency ranges between 84 and 94%.
Spermicides
There are several forms: sprays, creams or pessaries. Some preservatives include them also. Your goal is to basically kill sperm as they enter the vagina.
It should use 10 minutes before intercourse and is not a very safe method, since in 100 games may cause between 18 and 29 pregnancies. It included in the list of unsavory methods.
Sponge
It is a special object that is placed in the vagina before sex and should be removed eight hours after intercourse (more than 24 hours should never be used). It is impregnated with spermicide. The efficiency is between 84 and 91% for women who have not yet had children.
Those who were sure mothers know that the vaginal canal is dilated at birth and can not return "to normal", therefore, the method is less effective: 20 to 32 pregnancies per 100 applications.
Ogino
It is called "the calendar method" and was created by a Japanese doctor. The system allows to know what the fertile days of women are. It is derived by subtracting 11 days a year longer cycle and 18 to shorter cycle.
The problem is that no body is as punctual as a machine. However, it is said to be 91% sure.
BBT
When ovulation ends body temperature increases between 0.2 and 0.5 ° C and so maintained until the cycle ends. The body warmer period also marks the infertile period of the woman.
It is not entirely reliable, because the temperature can vary by other issues, such as infection, or the arrival of summer sports. Has a 80% correct if you take your temperature every day at the same hour.
Coitus Interruptus
Only if applied to the letter the efficiency is 96%, but this must not enter the vagina or even a drop of pre-cum. In real life, the habit of withdrawing the penis before the male orgasm has a 70% reliability.
Female condom
It is one of the more "modern" contraception out there, but this is not recommended. It is a kind of lubricated polyurethane sheath placed in the vagina and makes it resistant to the entry of sperm.
It's pretty uncomfortable for both women and for men but has the ability to prevent infections from sexually transmitted diseases. ¿Effectiveness against pregnancy? Between 5 and 21%.
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