What to Do About Missed or Skipped Birth Control Pills
Birth control methods have high rates of effectiveness if they are used consistently. Follow your health professional's instructions on what to do if you miss or skip your birth control pills. Some general guidelines are listed here.
Combination (estrogen plus progestin) birth control pills
Always read the pill label for specific instructions. Or call your doctor. How likely pregnancy is depends on a few things, such as when you missed the pill, how many pills you missed, what kind of pills you take, and whether you had sex.
Here are some basic guidelines:1
If you had unprotected sex during the time that you missed taking pills, you can use emergency contraception to help prevent pregnancy. If you are 15 or older, you can get emergency contraception, such as Plan B One-Step, without a prescription at most drugstores. If you are younger than 15, you need a prescription.
Vomiting and diarrhea can decrease the effectiveness of birth control pills. It is recommended that another method of birth control be used for 7 days after you have had the flu, even if you did not miss any pills.
Progestin-only pills must be taken at the same time each day. If you take a pill more than 3 hours late, take it as soon as you remember even if that means you will take 2 pills in one day. Use another method of birth control for the next 48 hours to prevent pregnancy.2 Consider using emergency contraception if you have had sex in the past 3 to 5 days.
eMedicineHealth Medical Reference from Healthwise
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