Your Guide to Birth Control Pills: Types, Effectiveness, and Safety
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Our team thoroughly researches and evaluates the recommendations we make on our site. To establish that the product manufacturers addressed safety and efficacy standards, we:The type of birth control you use is a personal decision, and there are many options to choose from. If you’re a sexually active person who can become pregnant, you could consider birth control pills.
Birth control pills, also called oral contraceptives, are medications you take by mouth to prevent pregnancy. According to the Food and Drug Administration (FDA), they’re an effective method of birth control with a success rate of about 91 percent (or a failure rate of 9 percent).
Find out how they work and what side effects they can cause, as well as other factors to help you decide whether birth control pills are a good choice for you.
What are birth control pills?
Birth control pills are oral contraceptives that contain small amounts of hormones similar to the ones your body uses as part of the menstrual cycle.
The hormones in birth control pills work to prevent pregnancy by stopping ovulation, or the release of an egg from the ovary. Some birth control pills also temporarily change the lining of the uterus so it’s less likely a fertilized egg will implant.
Birth control pills come in a pack, usually a 28-day cycle, with one pill assigned to each day. You take a birth control pill daily, typically during the same time frame each day, depending on the pill. This keeps certain hormones elevated, so you’re less likely to get pregnant.
What are the types of birth control pills?
Combination pills
Combination pills contain synthetic forms of the hormones estrogen and progesterone (called progestin in its synthetic form). Estrogen controls the menstrual cycle.
Estrogen levels are naturally highest in the middle of your cycle and lowest when you have your period. Progesterone prepares the uterus for pregnancy after ovulation by thickening the endometrium. High progesterone levels also prevent ovulation.
Combination pills come in a 28-pack. Most pills in each cycle are active, which means they contain hormones. The remaining pills are inactive, which means they don’t contain hormones. There are several types of combination pills:
Examples of brand-name combination pills include:
Possible benefits of combination pills
Combination pills may also provide some protection against:
Progestin-only pills
Progestin-only pills contain progestin (synthetic progesterone) without estrogen. This type of pill is also called the minipill.
Progestin-only pills can help reduce bleeding in people with heavy periods. They may be a good choice for people who can’t take estrogen for health or other reasons, like a history of stroke, migraine with aura, heart disease, peripheral vascular disease, and/or deep vein thrombosis.
You should also avoid estrogen if you’re over 35 and smoke, as this combination can increase your risk of developing a blood clot.
With progestin-only pills, all pills in the cycle are active. There are no inactive pills, so you may or may not have a period while taking progestin-only pills.
Examples of brand-name progestin-only pills include:
Possible benefits of progestin-only pills
Progestin-only pills may be safer for people who:
Deciding on a type of birth control pill
Not every type of pill is a good fit for every person. Talk with your doctor about which pill option would work best for you. Factors that can affect your choice include:
How do birth control pills work?
Combination pills work in two ways.
First, they prevent your body from ovulating. This means your ovaries won’t release an egg each month.
Second, these pills cause your body to thicken your cervical mucus, the fluid around your cervix that helps sperm travel to your uterus so it can fertilize an egg. The thickened mucus helps prevent sperm from reaching the uterus.
Progestin-only pills also work in a few different ways. Mainly, they work by thickening your cervical mucus and by thinning your endometrium.
Your endometrium is the lining of your uterus, where an egg implants after it’s fertilized. If this lining is thinner, it’s harder for an egg to implant in it, which will prevent a pregnancy from growing.
Progestin-only pills may also prevent ovulation.
How do I use birth control pills?
Combination pills come in a variety of formats. These include monthly packs, which follow 21-, 24-, or 28-day cycles. Extended regimens can follow 91-day cycles. With all these formats, you take one pill each day at the same time of day.
If you start taking your combination pill within 5 days after your period starts, you’ll be protected against pregnancy right away. If you start at any other time, you’ll need to take the pills for 7 consecutive days before you’re protected. During this time, you should use a barrier method of birth control, such as an external condom.
Progestin-only pills, on the other hand, come in only packs of 28. As with combination pills, you take one pill at the same time every day.
Progestin-only pills tend to work more quickly than combination pills, which means you’ll be protected against pregnancy after taking 2 consecutive pills within 48 hours. If you don’t want to wait the 48 hours to have sex, you should use a barrier method of birth control.
How effective are birth control pills?
If taken correctly, birth control pills are very effective in preventing pregnancy. Both the combination pill and the progestin-only pill have 9 percent failure rates with typical use. That means out of 100 people using the pill, 9 would get pregnant.
To be fully effective, progestin pills must be taken within the same 3-hour time period every day. If you miss this time window, you should take your pill as soon as you remember and use a different method of contraception, like a condom, for 2 days.
There is slightly more flexibility with combination pills. In general, you should try to take combination pills at the same time each day, but you can take them within the same daily 12-hour window and still have pregnancy protection.
Certain medications may make either type of pill less effective, including:
The pill may also be less effective if you experience diarrhea or vomiting. If you’ve had a stomach illness, check with your doctor to see whether you’re at risk of pregnancy. In that case, you should use a backup method of contraception, such as a condom.
What are the pros and cons of birth control pills?
Pros
Cons
What to do if you miss a birth control pill
Depending on which pill you’re taking, there are different routes to take when you’ve missed one or more doses.
| Number of missed pills | Action | Emergency contraception (EC) | Backup birth control |
| 1 active combination pill | Take the missed pill ASAP, even if that means you take 2 in 1 day. Continue taking the rest of your pills on a normal schedule. | Unless you missed the pill early in your cycle (5–7 days) or late in your previous cycle, EC isn’t usually needed. | none needed |
| 2+ active combination pills | Take the most recent pill ASAP, even if that means you take 2 in 1 day. Continue taking the rest of your pills on a normal schedule. | If you missed the pills during the first week of your cycle and had sex without a condom or other barrier method, consider using EC. | Use backup BC or abstain until you’ve taken the active pills for 7 consecutive days.If you missed pills in your third week, take the active pills in the pack daily until you run out, then start a new pack the next day.Don’t take the inactive pills. |
| 1+ active progestin-only pills | Take 1 pill ASAP. Continue taking your pills on a normal schedule. | If you had sex without a barrier method within the past 5 days, consider using EC. | Use backup BC or abstain until you’ve taken pills for 2 consecutive days. |
| 1+ inactive pills (either type) | Discard the missed inactive pill(s) and continue on your normal schedule.You should never leave more than 7 consecutive days between taking active pills. | none needed | none needed |
Side effects, risks, and considerations
While birth control pills are safe for most people, they do come with some side effects and risks. Everyone reacts differently to the hormones in birth control pills. Some people have side effects such as:
If you have these side effects, they will likely improve after a few months of using the pill. If they don’t improve, you should talk with your doctor. They may suggest you switch to a different type of birth control pill.
Risks
A serious risk of using birth control pills, especially combination pills, is an increased risk of blood clots. This can lead to:
Overall, the risk of a blood clot from using any kind of birth control pill is low.
According to the American College of Obstetricians and Gynecologists, out of 10,000 people taking birth control pills, about 10 will develop a blood clot after taking a combination pill for a year. This risk is still lower than the risk of developing a blood clot during pregnancy and immediately after giving birth.
However, the risk of a blood clot from the pill is higher for certain groups. This includes those who:
If any of these factors apply to you, talk with your doctor about the risks of using a birth control pill.
Considerations
Many birth control options are available today, and the birth control pill is an excellent one. But the best birth control choice for you depends on many factors. To find an option that works for you, talk with your doctor. Be sure to ask any questions you have. These might include:
How can I get birth control pills?
With increasing demand for contraceptive options, access to birth control pills is becoming easier than ever.
You can go the traditional route and schedule an in-person visit with a doctor. Once you go through your medical history and discuss your family planning goals, your doctor will provide a prescription that you can then fill at your local pharmacy.
There are also several ways to get birth control pills online without an in-person visit to a doctor.
Telehealth services, like Nurx, Lemonaid, SimpleHealth, and The Pill Club offer online consultations, some via video and some through messaging or a medical questionnaire, with licensed doctors and healthcare professionals who review your medical history and then provide a prescription for a recommended birth control.
Once the prescription is filled, the birth control pills are shipped directly to your home.
»MORE:Recommended Services for Birth Control OnlineFrequently asked questions
Does birth control make you gain weight?
Many people believe that birth control pills lead to weight gain. But, while some people do gain weight after starting oral contraceptives, there’s little research to determine a direct link.
In a 2014 review, researchers looked at 49 studies on the association between combined contraceptives and weight gain. They concluded that there was insufficient evidence to suggest that birth control leads (or doesn’t lead) to weight gain.
An increase in weight might be due to water retention. Other factors, such as lifestyle changes, muscle gain, and emotional health, can affect weight gain as well. There is a lack of recent clinical studies looking at whether the pill leads to weight gain. Hopefully, future research will tell us more.
What are popular birth control pills with little side effects?
Everyone reacts differently to medications, so it isn’t easy to predict whether you’ll experience side effects when taking birth control pills.
Talk with your doctor about your options and any associated side effects. If you experience side effects on one kind of pill, talk with your doctor about changing to another oral contraceptive.
Can I get birth control without my parents’ permission?
In the United States, most states allow teenagers to access oral contraception and other birth control options without parental permission. It’s best to call your doctor, a local Planned Parenthood center, or your student health center to find out whether you’ll need a parent’s permission.
Doctors have to adhere to patient-doctor confidentiality. However, if you’re on your parent’s insurance plan, it’s possible your parent will receive a statement in the mail that shows what insurance paid for.
If you’re concerned about privacy, you might want to pay out of pocket. If you can’t afford it, Planned Parenthood might be able to help you cover the cost.
How are birth control pills different from an IUD?
An intrauterine device (IUD) is a form of birth control. It’s a small device that’s inserted into the uterus.
An IUD can be more expensive up front than other types of birth control, but it might save you money in the long run. You won’t need to replace it for a while — depending on the type of IUD you use, it can last 3 to 12 years. It’s also one of the most effective forms of birth control, at more than 99 percent effective.
You can get a copper (nonhormonal) IUD or a hormonal IUD, depending on your preference. If you’re considering switching from birth control pills to an IUD, consult a healthcare professional to see whether it’s right for you.
Takeaway
Birth control pills are oral contraceptives that help prevent pregnancy. Each pill contains small amounts of the hormones estrogen and/or progesterone (in its synthetic form, called progestin). When taken correctly, they have a 91 percent success rate.
There are two types of birth control pills, combination and progestin-only. Combination pills are more common, but progestin-only pills, which don’t contain any estrogen, may be a better fit for certain groups of people, such as those who have a history of blood clots or have heavy periods.
Before taking birth control pills, talk with your doctor or a licensed medical professional to determine which type is right for you.
Posted : 2024-08-29 10:50
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