How Does Birth Control Prevent Pregnancy

How Is The Pill Taken

How to prevent pregnancy | Natural birth control | I DON’T WANT TO GET PREGNANT REMEDY

Most combination pills come in either a 21-day pack or a 28-day pack. One hormone pill is taken each day at about the same time for 21 days. Depending on your pack, you will either stop taking birth control pills for 7 days or you will take a pill that contains no hormones for 7 days . A woman has her period when she stops taking the pills that contain hormones. Some women prefer the 28-day pack because it helps them stay in the habit of taking a pill every day.

There is also a type of combination pill that decreases the frequency of a woman’s period by supplying a hormone pill for 12 weeks and then inactive pills for 7 days. This decreases the number of periods to one every 3 months instead of one every month.

Another kind of pill that may change the number of monthly periods is the low-dose progesterone pill, sometimes called the mini-pill. This type of birth control pill differs from the other pills in that it only contains one type of hormone progesterone rather than a combination of estrogen and progesterone. It works by changing the cervical mucus and the lining of the uterus, and sometimes by affecting ovulation as well. The mini-pill may be slightly less effective at preventing pregnancy than combination pills.

The mini-pill is taken every day without a break. A girl who is taking it might have no period at all or she may have irregular periods. For the minipill to work, it must be taken at the same time every day, without missing any doses.

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What Is The Best Form Of Birth Control

What’s “best” among birth control methods differs from person to person. What is right for a person may not be right for others. And individual needs may also change over time.

  • The only 100% assured method to avoid pregnancy is to not have penetrative sex or any sexual activity where sperm can reach into the vagina. This is called abstinence.
  • Condoms with any type of birth control are considered the most effective way to avoid pregnancy and also offer protection against sexually transmitted diseases . No birth control method is perfect. Using condoms with another type of birth control gives backup protection in case either method fails. Condom lowers the chances of getting all kinds of STDs, like HIV, gonorrhea, chlamydia and herpes.

How Does The Birth Control Pill Work

Before one can fully appreciate what makes low-dose contraceptives different than other forms of birth control, its crucial to understand how the birth control pill works.The female reproductive system operates under a cycle of rising and falling estrogen, progesterone, and androgen hormones. At the beginning of the cycle, hormones steadily increase until the ovary is prompted to release an egg. Once this happens, hormones influence the uterus to grow an endometrial lining in preparation for a fertilized egg. If an egg is not fertilized within about 10 to 14 days after ovulation, the endometrium sheds, resulting in a menstrual period.

The pill disrupts the rising and falling of reproductive hormones by a steady dose of synthetic estrogen and progesterone. The endometrium is not signaled to grow to prepare a fertilized egg, and when women who take the pill have a menstrual period, its not really a period because ovulation did not occur. Monthly bleeding on the pill is referred to as withdrawal bleeding.

Naturally occurring estrogen in the female reproductive cycle is produced in the ovaries. Estrogen helps the uterus grow the lining that is responsible for the implantation of a fertilized egg.

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Hormonal Iuds Vs Copper Iuds

There are two types of IUDs, both of which work by preventing the sperm from reaching the egg. Hormonal IUDs release the hormone progestin, which thickens the cervical mucus so sperm cannot get through and also changes the lining of the uterus so a fertilized egg cannot become implanted. A hormonal IUD may even prevent the egg from leaving the ovary in the first place. The two brands of hormonal IUDs are Mirena® and Skyla®, which can be used for five years and three years respectively.

The ParaGard® IUD does not release hormones. Instead, it is wrapped with small amounts of copper that create a chemical reaction in the uterus, making it a spermicide. The copper prevents the sperm from getting through the vagina and uterus to fertilize the egg. The Paragard® IUD can be used for about 10 to 12 years.

Oral Contraceptives May Cause Side Effects Tell Your Doctor If Any Of These Symptoms Are Severe Or Do Not Go Away:

Preventing Teen Pregnancy Infographics
  • nausea
  • gingivitis
  • increased or decreased appetite
  • weight gain or weight loss
  • brown or black skin patches
  • acne
  • hair growth in unusual places
  • bleeding or spotting between menstrual periods
  • changes in menstrual flow
  • light-colored stool
  • swelling of the hands, feet, ankles, or lower legs
  • depression, especially if you also have trouble sleeping, tiredness, loss of energy, or other mood changes
  • unusual bleeding
  • rash
  • menstrual bleeding that is unusually heavy or that lasts for longer than 7 days in a row

Oral contraceptives may increase the chance that you will develop liver tumors. These tumors are not a form of cancer, but they can break and cause serious bleeding inside the body. Oral contraceptives may also increase the chance that you will develop breast or liver cancer, or have a heart attack, a stroke, or a serious blood clot. Talk to your doctor about the risks of using oral contraceptives.

Some studies show that women who take oral contraceptives that contain drosperinone may be more likely to develop deep vein thrombosis than women who take oral contraceptives that do not contain drosperinone. However, other studies do not show this increased risk. Before you begin taking oral contraceptives, talk to your doctor about the risk that you will develop blood clots and about which oral contraceptive or other method of birth control may be the best choice for you.

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What Other Information Should I Know

Keep all appointments with your doctor and the laboratory. You should have a complete physical examination every year, including blood pressure measurements, breast and pelvic exams, and a Pap test. Follow your doctor’s directions for examining your breasts report any lumps immediately.

Before you have any laboratory tests, tell the laboratory personnel that you take oral contraceptives.

If you wish to stop taking oral contraceptives and become pregnant, your doctor may tell you to use another method of birth control until you begin to menstruate regularly again. It may take a long time for you to become pregnant after you stop taking oral contraceptives, especially if you have never had a baby or if you had irregular, infrequent, or complete absence of menstrual periods before taking oral contraceptives. However, it is possible to become pregnant within days of stopping certain oral contraceptives. If you want to stop taking oral contraceptives but do not want to become pregnant, you should begin using another type of birth control as soon as you stop taking oral contraceptives. Discuss any questions that you may have with your doctor.

Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.

How Can I Get Free Or Low

Under the Affordable Care Act , most insurance plans cover FDA-approved prescription birth control for women, such as the pill, IUDs, and female sterilization, at no additional cost to you. This also includes birth control counseling.

  • If you have insurance, check with your insurance provider to find out what is included in your plan.
  • If you have Medicaid, your insurance covers birth control. This includes birth control prescriptions and visits to your doctor related to birth control. Programs vary between states, so check with your state’s Medicaid program to learn what your benefits are.
  • If you don’t have insurance, don’t panic. Family planning clinics may provide some birth control methods for free or at low cost. Call your local clinic or enter your ZIP code in this clinic finder tool to learn more.

For information about other services covered by the Affordable Care Act, visit

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Take Action Emergency Contraceptive

The pill has to be taken within 72 hours after unprotected sex. The sooner its taken, the better.

It is not a regular medicine which is to be taken daily. It gives one-time results and is very effective.

You can also take Take Action pill after within 72 hours after you have incorrectly used your regular birth control measure or if that one has failed. It is very effective and works in 90% of the cases.

So How Fast Do Birth Control Pills Work


For combination pills, it depends on when you begin your first pack.

If you begin the pill on the first day of your period, theyll work right away to prevent pregnancy. However, if you start it any time after your period, give it 7 days before they start protecting against pregnancy. In that time, be sure to use condoms or a female condom if you have sex.

You can start taking POPs at any time during your menstrual cycle. However, the amount of time for it to take effect isnt quite the same as the combination pill. According to Planned Parenthood, it takes 48 hours for the mini-pill to take effect when you start it. So, if you have sex any time between then, be sure to use a backup method as well!

Its important to keep in mind that the mini-pill has a lower dose of hormones than the combination pill. The hormones are effective for only around 24 hours which is why its important to take it at the same time every day. So, if youre late in taking it or miss a pill, be sure to use back up contraception during those 48 hours again.

So, to sum up the answer to how fast do birth control pills work?, check out the chart below:

Any time during menstrual cycle 48 hours to become effective and protect against pregnancy

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How Do Birth Control Pills Works

If the egg released from the ovary gets fertilized with the sperm, the woman gets pregnant. The fertilized egg then starts receiving nutrition and develops into a fetus.

All these functions are controlled by different female hormones. The birth control contraceptives work by disturbing the production and release of the hormones to terminate the pregnancy.

Hormonal contraceptives contain a small amount of man-made estrogen and progestin hormones which disturbs a womans reproductive cycle.

They work through a combination of factors to make that happen.

  • The hormonal contraceptives would stop the uterus from producing an egg.
  • The Hormonal contraceptives also change the cervical mucus and make it thicker which prevents sperm from getting to the eggs.
  • Another effect that Hormonal contraceptives have are, they change the lining of the womb so that the fertilized egg does not get implanted into it which prevents it from turning into a fetus.

Birth control pills are taken on a daily basis or as recommended by the doctor to prevent pregnancy. Generally, a woman takes the different combination of Birth Control pills to make sure the pregnancy gets terminated.

What Are Benefits Of Taking The Pill

Some women take the pill for health purposes. The pill can:

  • Regulate or lighten menstruation.

Your doctor will talk to you about your level of risk based on your medical history. Luckily, if an individual is not able to use an estrogen-containing pill, most can still safely take progestin only pills.

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What Is Birth Control

Birth control is any method used to prevent pregnancy. Another word for birth control is contraception .

If you have sex without birth control, there is a chance that you could get pregnant. This is true even if you have not started having periods yet or you are getting close to menopause.

The only sure way to prevent pregnancy is to not have sex. But finding a good method of birth control you can use every time can help you avoid an unplanned pregnancy.

How To Make The Birth Control Pills Work For You

Birth Control Methods

Not taking the pill on time, taking the pill at a different time every day or even forgetting to take the pill. All of this would not accrue to the result that you want to see. These are the reason why some women who do take these pills get pregnant.

So, if you want that to not happen to you, make sure you are taking the pills every day and on time.

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Perfect Use Vs Typical Use

Many contraceptive methods are affected by human error such as forgetting to take your pill. They may be very effective with perfect use but the effectiveness of certain methods as typically used is likely to be lower.

Perfect use of a contraceptive method is when it is used correctly all the time.

Typical use is what generally happens in real life. It takes into account human error.

As you can see below, for long acting reversible contraception the perfect use is the same as typical use. This is because you dont have to remember to take anything or get the condom on correctly. This is why more and more women are choosing LARCs.

Effectiveness of different contraception methodsContraception effectiveness is measured by how many women will get pregnant within a year of using that method.

For example, the effectiveness of male condoms with perfect use is 98%. This means out of 100 women using condoms correctly all the time, two will become pregnant within one year.

Sometimes the effectiveness is quoted for the first year of use when people are learning how to use a method correctly. These figures below quote the first year use.

How Hormonal Birth Control Prevents Pregnancy

Hormonal birth control is designed to prevent ovulation by supplying a steady level of estrogen and/or progestin every day. For pregnancy to occur, an egg must be present in the fallopian tube for the sperm to fertilize. So, when hormonal contraceptives stop ovulation, an egg is not released from the ovary. With no egg for the sperm to join, pregnancy is prevented.

Combination birth control methods prevent ovulation, and progestin-only birth control can also do this.

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What Is The Pill And How Does It Work

Birth control pills are taken daily to prevent pregnancy. The pills contain hormones similar to the ones that naturally exist in a womans body. Those hormones help prevent ovulation. And without ovulation, theres no egg released for sperm to fertilize.

There are two types of birth control pills: progestin-only pills and combination pills . Both types of pills are highly effective they just contain different amounts of hormones.

You can also choose between conventional pills and extended-cycle pills. The conventional pills come with 24 active pills and four inactive pills. This enables you to get your period regularly, every month. Extended-cycle pills are designed so you take more active pills in a row and typically have your period four times a year, or once every three months.

Cervical Cap With Spermicide

Birth control options reduces abortion rates and unwanted pregnancies

Spermicides containing N9 can irritate the vagina and rectum. It may increase the risk of getting HIV from an infected partner.

What is it?

  • A soft latex or silicone cup with a round rim, which fits snugly around the cervix.

How do I use it?

  • You need to put spermicide inside the cap before you use it.
  • You must put the cap in the vagina before you have sex.
  • You must leave the cap in place for at least 6 hours after having sex.
  • You may leave the cap in for up to 48 hours.
  • You do NOT need to use more spermicide each time you have sex.

How do I get it?

  • First, a healthcare provider needs to determine the correct cervical cap size for you. Then you need a prescription for the device.

Chance of getting pregnant with typical use

  • Out of 100 women who use this method, about 17 to 23 may get pregnant.
  • It may not work as well for women who have given birth. Childbirth stretches the vagina and cervix and the cap may not fit as well.

Some Side Effects and Risks

  • Irritation
  • Aabnormal Pap test

Some Less Common Risks

  • If you keep it in place longer than 48 hours, there is a risk of toxic shock syndrome. Toxic shock syndrome is a rare but serious infection.

Does it protect me from sexually transmitted infections ? No.

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What Do I Do If I Missed A Birth Control Pill

The pill works best if you take it every day on schedule, but almost everyone on the pill forgets to take it sometimes. Knowing what to do when you miss a birth control pill is important.

Heres a handy tool to help you figure out what to do if you miss a pill. Youll need to know the brand name of the pill youre on in order to use this tool. You can find the name on your pill pack or by calling your doctor or the drugstore where you got it.

If you cant find out the name of your pill, use a condom anytime you have vaginal sex until you can talk with your nurse or doctor. If youve already had sex in the last 5 days since making a pill mistake, you may want to use emergency contraception.

If youre on Slynd and you miss 1 white hormone pill, take your missed pill as soon as possible, and then take your next pill when you were normally supposed to that might mean taking 2 pills in 1 day. If you miss 2 or more white pills, take the most recent pill you missed as soon as possible, and keep taking 1 pill a day until you finish the pack . If you miss 2 or more white pills and have penis-in-vagina sex within the next 7 days, use a backup method of birth control . If you miss 1 or more green reminder pills, just throw away the green pills you missed and keep taking 1 pill a day until you finish the pack.

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