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How long does it take for birth control pills to work?

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Birth Control Pills You will need to be on your birth control pills for at least one full month, before they are completely effective. ChaCha

Answered by Bonnie B. -

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Older Answers

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It takes 7 days from the start of the pill for it to be effective in preventing pregnancy. Thanks for asking ChaCha.

Answered by Annette A. -

Top Questions Asked on ChaCha.com for Birth Control Pills

In the Last:
Day | Week | Month

  1. Can i have a miscarrige If im taking birth control pills,?

    Do not take birth control pills if you are pregnant. This can...

  2. What are the chances of me getting pregnant if I use the birth control pill and a condom?

    I couldn't find any studies, but since the pill is 99 percent...

  3. How effective is loestrin24fe.. The birth control pill.. against pregnancy?

    Loestrin(r) 24 Fe is over 99% effective in preventing pregnan...

  4. What are the names of generic birth control pills that start with the letter 's'?

    Seasonale and Seasonique are both birth control pills that be...

  5. How long does it take for birth control pills to start working?

    It will take 7 days for the pill to become effective at preve...

  1. What would happen if a guy took a birth control pill?

    Birth control pills for men might be available soon. They sho...

  2. Is it safe to drink chamomile tea while on birth control pills?

    Yes very safe. If you are still not sure call your doctor's o...

  3. If you miss a birth control pill and take to the next day does it work?

    Never take more than the recommended dosage. If you miss a da...

  4. How many birth control pills do you have to take to equal one plan b pill?

    You must take 2 to 5 regular pills together to equal 1 dose o...

  5. What are the names of generic birth control pills that start with the letter 's'?

    Seasonale and Seasonique are both birth control pills that be...

  1. What are the names of generic birth control pills that start with the letter 's'?

    Seasonale and Seasonique are both birth control pills that be...

  2. If your on the birth control pill can you still have your period?

    Birth control does not completely stop your periods. Dependin...

  3. Does walgreens sell birth control pills?

    Yes, Walgreens sells birth control pills. They are available ...

  4. Do birth control pills expire?

    As a general rule, expiration dates printed on medications ar...

  5. How long does it take for the birth control pill Junel to start working fully?

    As long as you start your pack as soon as you start your peri...

Top Questions Asked on ChaCha Mobile for Birth Control Pills

In the Last:
Day | Week | Month

  1. How long does it take for birth control pills to start working?

    It will take 7 days for the pill to become effective at preve...

  2. If you miss a birth control pill can you start spotting?

    Occasionally you may be late taking a pill or forget to take ...

  3. Can i have a miscarrige If im taking birth control pills,?

    Do not take birth control pills if you are pregnant. This can...

  4. What are the chances of me getting pregnant if I use the birth control pill and a condom?

    I couldn't find any studies, but since the pill is 99 percent...

  5. What do birth control pills do?

    Birth control pills are "combination pills" containing a comb...

  1. How effective is the birth control pill?

    Taken properly, the birth control pill is an effective method...

  2. How long does it take for birth control pills to start working?

    It will take 7 days for the pill to become effective at preve...

  3. Can you take the morning after pill if you are on a birth control pill?

    Yes, you can take the morning after pill if you're on birth c...

  4. What happeneds if you skip your birth control SUGAR pills?

    Sugar pills are placebos, containing no active drug. If you f...

  5. What are the chances of me getting pregnant if I use the birth control pill and a condom?

    I couldn't find any studies, but since the pill is 99 percent...

  1. What are the chances of me getting pregnant if I use the birth control pill and a condom?

    I couldn't find any studies, but since the pill is 99 percent...

  2. What do birth control pills do?

    Birth control pills are "combination pills" containing a comb...

  3. What birth control pill is the safest and what is it called?

    Unfortunately there is no one birth control pill that is the ...

  4. Is the Plan B pill the same as birth control?

    Plan B is an emergency contraception similar to birth control...

  5. If you take a birth control pill when your on your period will it stop it?

    Starting your birth control pills during your period will sto...

About Birth Control Pills

Birth Control Pills

Birth control pills prevent pregnancy by stopping ovulation, or the release of an egg into the ovaries. Birth control pills contain hormones -- estrogen, progestin or both -- which prevent the egg from being released before menstruation. If no egg is released, a sperm cannot join with it. Hense, pregnancy is prevented. There are many different pills, so consult with your doctor to choose one that is right for you.

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