Does the Birth Control Pill Need a Backup for Full Protection Against Pregnancy?

When taking the birth control pill, you may wonder if you need to use a backup method for full pregnancy protection. In order to prevent pregnancy with birth control, it is important to know all the details regarding proper use.

Effectiveness

• According to the University of Iowa Hospitals & Clinics, the birth control pill is approximately 99.6% effective at preventing pregnancy when taken correctly. In most cases, you should not have to use a backup in addition to the pill to prevent pregnancy.

Function

• The two main hormones in birth control pills, progesterone and estrogen are extremely effective at preventing pregnancy. These hormones prevent monthly ovulation and alter the cervical mucous and the lining of the uterus, making the environment unsuitable for pregnancy.

First 7 Days

• You should use a backup for the first seven days of taking the birth control period. During this time, your body is still adjusting to the hormones and they may not yet be in full effect.

When To Use Backup

• If you miss a pill, take a pill more than four hours late or vomit within two hours of taking the pill, you should begin using a backup method immediately to protect against pregnancy. Continue using your backup method until the you start your next pack of birth control pills.

Medication Interactions

• You may also need to use a backup method while taking birth control if you are taking specific medications, such as antibiotics. Talk to your doctor about any medications you are taking to determine whether they decrease the effectiveness of the birth control pill.