Emergency Contraception

Emergency contraception (EC) is a form of birth control that is used to prevent pregnancy after unprotected sex.

Someone might use EC if a birth control method fails, or after sexual assault, if pregnancy is a concern. It is not meant to be a primary method of birth control.

EC methods include emergency contraception pills (sometimes called the “morning after pill”) and certain intrauterine devices (IUDs).

Types of Emergency Contraception

Emergency Contraception Pills

EC pills primarily work by delaying or preventing ovulation (when an egg is released from an ovary). EC pills can be taken within five days of sexual intercourse. EC pills are not an “abortion pill”, and will not end an existing pregnancy. Watch this short video to learn more about EC options and how they work.

There are two types of EC pills: “Plan B” and “ella” (or similar generic versions):

  • Plan B is the most widely available and known type of EC pill.
    • Plan B is most effective if it is taken within 3 days of sexual intercourse.
    • It is available over the counter at most pharmacies without a prescription. Generic Plan B is also available through the five Medi Cube vending machines at BU.
    • It is important to note that Plan B may be less effective or not work at all if you weigh 165 pounds or more.

  • ella is only available with a prescription.
    • If you weigh 165 pounds or more, ella may be a better EC pill option for you. If you weigh 195 pounds or more, ella may not be as effective for you as other EC options like certain IUDs.
    • Ella can also temporarily interfere with birth control pills, so if you’re using them, it’s important to use a backup method (such as condoms) for 2 weeks after using ella. Please talk with a healthcare provider about EC options.
Certain IUDs

Certain IUDs (particularly copper IUDs) can act as emergency contraception when placed within 5 days of unprotected sex. If you weigh 195 pounds or more, EC pills may not be as effective for you, and an IUD might be a better option. You can talk with a healthcare provider about getting an IUD. Inserting an IUD requires an appointment with a healthcare provider.

Options for Getting Emergency Contraception:

Cost of Emergency Contraception

If you have the Student Health Insurance Plan (SHIP), EC pills with a prescription are covered with no additional cost.

If you have another insurance plan, the cost of EC pills with a prescription will depend on your insurance provider’s policy.

If you choose to purchase Plan B (or similar generic options) over the counter without using your health insurance plan (often referred to as “‘paying out of pocket”’), the cost is typically about $50.