Choosing a contraceptive is one of the most personal health decisions you can make. What works brilliantly for one person can feel completely wrong for another. This guide walks through every major method available, what it actually does, and what is genuinely good and genuinely difficult about each one so you can have a more informed conversation with your doctor.
Effectiveness rates listed are based on perfect use. Typical use, which accounts for human error, is usually a little lower. Your doctor can help you understand which method suits your lifestyle and health history best.
The combined oral contraceptive pill 99% effective
The combined pill contains both estrogen and progestin. You take one tablet every day for 21 days and then have a seven day break, during which you get a withdrawal bleed that resembles a period.
Pros
Highly effective when taken consistently at the same time each day.
Can make periods lighter, shorter, and much less painful.
Often improves acne and reduces PMS symptoms.
Fertility returns quickly after stopping.
Reduces the risk of ovarian cysts and certain cancers with long term use.
Cons
Must be taken at the same time every day to stay effective.
Does not protect against sexually transmitted infections.
Can cause side effects including nausea, mood changes, low libido, and breast tenderness, especially in the first few months.
Carries a small increased risk of blood clots, particularly in smokers and women over 35.
Not suitable for women with certain conditions including migraines with aura, high blood pressure, or a history of clots.
The progestin-only pill (mini pill) 99% effective
The mini pill contains only progestin. It works mainly by thickening cervical mucus to prevent sperm from reaching an egg. It must be taken within the same three hour window every day.
Pros
Safe for women who cannot take estrogen, including those who breastfeed, smoke, or have migraines with aura.
Can reduce period pain and in some women stops periods altogether.
Fertility returns quickly after stopping.
Cons
Requires very strict timing. Missing the three hour window reduces effectiveness.
Irregular spotting and unpredictable bleeding are common, especially early on.
Does not protect against STIs.
The hormonal IUD (intrauterine device) 99% effective
A small T-shaped device inserted into the uterus by a doctor or nurse that releases a low dose of progestin locally. Depending on the brand, it lasts between three and eight years.
Pros
One of the most effective methods available with no daily action required.
Periods typically become much lighter and often stop completely, which many women find very welcome.
Works for years and is reversible at any time.
Hormone levels in the bloodstream are much lower than with the pill.
Cons
Insertion can be uncomfortable to painful, though it is over quickly.
Irregular spotting is very common in the first three to six months.
Requires a clinical appointment to insert and remove.
Does not protect against STIs.
The copper IUD 99% effective
A small copper device inserted into the uterus. Copper is naturally toxic to sperm. It contains no hormones and can last up to ten years. It can also be used as emergency contraception if inserted within five days of unprotected sex.
Pros
Completely hormone-free, which is important for women who experience significant side effects from hormonal methods.
Lasts up to ten years with no effort required.
Fertility returns immediately after removal.
Can serve as highly effective emergency contraception.
Cons
Often makes periods heavier and more crampy, particularly in the first few months.
Insertion can be painful.
Does not protect against STIs.
The implant 99% effective
A thin flexible rod about the size of a matchstick that is inserted under the skin of the upper arm. It releases progestin continuously and lasts for three years.
Pros
The most effective contraceptive available. Once it is in, there is nothing to remember.
Many women find their periods become lighter or stop altogether.
Fertility returns quickly after removal.
Safe for women who cannot take estrogen.
Cons
Unpredictable bleeding is the most common reason women choose to have it removed early.
Possible hormonal side effects including mood changes, headaches, and acne.
Requires a minor clinical procedure to insert and remove.
Does not protect against STIs.
The contraceptive injection 99% effective
A progestin injection given every 8 to 13 weeks depending on the brand. It works by preventing ovulation.
Pros
Nothing to remember between appointments.
Periods often become lighter or stop completely.
Suitable for women who cannot take estrogen.
Cons
Fertility can take up to a year to return fully after stopping, which is one of the longer recovery times of all methods.
Cannot be reversed once administered. You have to wait for it to wear off.
Long term use may reduce bone density, though this typically recovers after stopping.
Irregular spotting is common.
The contraceptive patch 99% effective
A small sticky patch worn on the skin that releases estrogen and progestin. You change it once a week for three weeks and then go patch-free for a week.
Pros
Only needs to be changed weekly rather than taken daily.
Similar benefits to the combined pill including lighter periods and reduced PMS.
Unaffected by stomach upsets or vomiting, unlike the pill.
Cons
Visible on the skin, which some women find uncomfortable.
Can cause skin irritation at the application site.
Carries the same estrogen-related risks as the combined pill.
Does not protect against STIs.
The vaginal ring 99% effective
A small flexible ring inserted into the vagina for three weeks, removed for one week, and then replaced. It releases estrogen and progestin continuously.
Pros
Only needs to be changed monthly.
Lower hormone doses than the pill because absorption bypasses the digestive system.
Similar benefits to the combined pill for periods and PMS.
Cons
Some women feel uncomfortable with the insertion process.
Can occasionally be felt during sex, which may bother some partners.
Carries the same estrogen-related risks as the combined pill.
Male condoms 98% effective with perfect use
A thin latex or polyurethane sheath worn over the penis during sex. The only widely available method that also protects against sexually transmitted infections.
Pros
The only method that protects against STIs including HIV.
No hormones and no prescription required.
Immediately reversible. No effect on fertility whatsoever.
Widely available and inexpensive.
Cons
Effectiveness drops significantly with inconsistent or incorrect use.
Can break or slip if not used correctly.
Requires cooperation in the moment, which can be a practical limitation.
Female condoms 95% effective with perfect use
A soft pouch inserted into the vagina before sex. Less widely used than male condoms but it puts contraceptive control in the hands of the woman.
Pros
Protects against STIs.
Can be inserted up to eight hours before sex.
No hormones. Suitable for women with latex allergies.
Cons
Less widely available than male condoms.
Can feel less natural and some find insertion tricky at first.
Slightly lower effectiveness than male condoms in typical use.
The diaphragm or cervical cap 88% effective with perfect use
A dome-shaped silicone device inserted into the vagina before sex to cover the cervix. It is used with spermicide to improve effectiveness and must stay in place for several hours after sex.
Pros
Hormone-free and reusable.
Can be inserted ahead of time so it does not interrupt the moment.
No effect on fertility after removal.
Cons
Must be fitted by a healthcare provider initially and refitted after pregnancy or significant weight change.
Requires planning and correct insertion every time.
Does not protect against STIs. Spermicide can increase susceptibility to infections with frequent use.
Emergency contraception Up to 99% effective if taken quickly
Emergency contraception is not a regular method but it is an important option to know about. The morning after pill is most effective when taken as soon as possible after unprotected sex and can work up to three to five days later depending on the type. The copper IUD inserted within five days is the most effective form of emergency contraception available.
Pros
Provides an important backup option when regular contraception fails or is not used.
Available without a prescription in most countries.
Cons
Not intended for regular use. It is less effective than consistent contraception.
Can cause temporary side effects including nausea, headache, and irregular bleeding.
Effectiveness decreases the longer you wait to take it.
Sterilisation Over 99% effective
A surgical procedure to permanently prevent pregnancy. In women this is called tubal ligation (having the fallopian tubes cut, tied, or blocked). In men it is a vasectomy. Both are considered permanent and should only be chosen by people who are certain they do not want biological children in the future.
Pros
Extremely effective and permanent. No ongoing effort required.
No hormones involved.
Vasectomy is a simpler, lower risk procedure than tubal ligation.
Cons
Should be considered irreversible. Reversal procedures exist but are not reliably successful.
Carries surgical risks, though both procedures are generally low risk.
Does not protect against STIs