These include whether a person has any health conditions or is taking any medicines or herbal supplements that might interfere with its use for example, an herb like St. John's wort can affect how well the Pill works. Talk to your doctor to check if anything you take could affect how the Pill works for you. How well a particular method of birth control works also depends on whether the method chosen is convenient — and whether the person remembers to use it correctly all the time.
The birth control pill does not protect against STDs. Couples having sex or any intimate sexual contact must always use condoms along with the Pill to protect against STDs. Abstinence the decision to not have sex or any intimate sexual contact is the only method that always prevents pregnancy and STDs.
The birth control pill is a safe and effective method of birth control. Most young women who take the Pill have none to very few side effects. The side effects that some women have while on the Pill include:. Some of these side effects improve over the first 3 months on the Pill. When a girl has side effects, a doctor will sometimes prescribe a different brand of the Pill. The Pill also has some side effects that most girls are happy about. It usually makes periods lighter, reduces cramps, and is often prescribed for women who have menstrual problems.
Taking the combination Pill often improves acne, and some doctors prescribe it for this purpose. Combination birth control pills have also been found to protect against some forms of breast disease, anemia , ovarian cysts, and ovarian and endometrial cancers. Young women who can remember to take a pill each day and who want excellent protection from pregnancy use birth control pills.
Not all women can — or should — use the Pill. In some cases, medical or other conditions make the use of the Pill less effective or more risky. For example, it is not recommended for women who have had blood clots, certain types of cancers, or some migraine headaches. It also might not be recommended for girls who have had unexplained vaginal bleeding bleeding that is not during their periods or who think they might be pregnant.
Girls who are interested in learning more about different types of birth control, including the Pill, should talk to their doctors or other health professionals. A doctor or a nurse practitioner NP must prescribe the Pill. He or she will ask about a girl's health and family medical history, and do a complete physical exam, which might include a pelvic exam.
Consult your health care provider as soon as possible if you're taking combination birth control pills and have:. You'll need to request a prescription for combination birth control pills from your health care provider. Your health care provider will check your blood pressure, check your weight and review your medical history, including medications you're taking.
He or she will also ask about your concerns and preferences to help determine which combination birth control pill is right for you. Health care providers generally recommend pills with the lowest dose of hormones that will help prevent pregnancy, give you important noncontraceptive benefits and minimize side effects.
Although the amount of estrogen in combination pills can be as low as 10 micrograms mcg of ethinyl estradiol, most pills contain about 35 mcg. Low-dose pills can result in more breakthrough bleeding than pills with more estrogen.
Combination pills are categorized based on whether the dose of hormones stays the same or varies:. Consult your health care provider about a starting date. If you use the quick-start method, you can take the first pill in the pack immediately. If you use the Sunday start, you'll take your first pill on the first Sunday after your period starts. With either method, use a backup contraception method for the first seven days you take combination birth control pills. If you use the first-day start, you'll take your first pill on the first day of your next period.
No backup method of contraception is needed. Follow your health care provider's instructions carefully. Birth control pills only work if you use them correctly, so make sure you understand the instructions. If you're using conventional combination birth control pills and want to have regular periods, you will take all of the pills in your pack — the active and the inactive ones — and start a new pack the day after you finish your current one.
If you want to avoid monthly periods, ask your health care provider about how to take the pills and how many active pill packs you can take in a row. Be cautious with missed pills. If you miss an active pill, take it as soon as you remember — even if it means taking two active pills in the same day. Take the rest of the pack as usual, and use a backup method of contraception for seven days if you missed your pill by more than 12 hours.
If you miss more than one active pill, take the last pill you missed right away. Take the rest of the pack as usual, and use a backup method of contraception for seven days.
If you've had unprotected sex, consult your health care provider about emergency contraception. If you vomit within two hours after taking a combination birth control pill or have severe vomiting and diarrhea for two or more days, proceed as if you've missed a pill.
Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. This content does not have an English version. On this page. What is the pill? How effective is the pill? How do I use the pill? How does the pill work? Where can I get the pill? What is good about the pill? Are there any side effects from taking the pill? Can the pill cause any serious health problems? When is the pill not a good option?
What if I miss a pill? What else should I know about the pill? Where to get help. What stops the pill from working? The pill may not work if: you miss a pill or it is taken more than 24 hours late you vomit within three hours of taking it you have very severe diarrhoea you are taking some medications or natural remedies. Check with your doctor, nurse or pharmacist. You use the pill by swallowing one pill around the same time every day. The pill works by stopping the ovaries from releasing an egg each month.
The pill can: be used to skip your period make your periods become lighter, more regular, and less painful improve acne reduce your chance of getting cancer of the uterus womb , ovaries and bowel help with symptoms of polycystic ovary syndrome PCOS and endometriosis.
Once you stop taking the pill your fertility quickly returns to normal. Possible side effects for a small number of people who take the pill can include: irregular vaginal bleeding nausea sore or tender breasts headaches bloating changes to your skin mood changes.
These side effects often settle with time. The pill has not been shown to cause weight gain. The pill may not be a good option for you if you: find remembering to take a daily tablet difficult have certain types of migraine or headache are very overweight have a close family member who has had a deep vein thrombosis are taking certain types of medication which might stop the pill from working check with your doctor, nurse or pharmacist have had some health conditions such as high blood pressure, heart or liver disease check with your doctor, nurse or pharmacist are over 35 years and smoke have been treated for breast cancer are unable to move around for a long time for example, because of surgery or disability.
If you miss a pill: Take the missed pill as soon as you notice this may mean taking two pills on the same day. Continue to take your pills as normal. Use condoms for the next seven days. If you have had sex without a condom in the seven days before missing a pill, you may need emergency contraception or you may need to skip your next sugar pills and start a new pill pack in the hormone section.
This depends on where you are up to in the pill packet check with your doctor, nurse or pharmacist. You can stop the pill at any time and your fertility will quickly return. The pill: does not protect you from sexually transmissible infections STIs. The best way to lessen the risk of STIs is to use barrier protection such as male and female condoms with all new sexual partners can sometime be supplied in small quantities by your pharmacist, without a prescription. If you run out of pills and cannot see a doctor for a new script, speak to a pharmacist.
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