Go to Content Go to Navigation Go to Navigation Go to Site Search Homepage

Roughly half of all pregnancies in the U.S. are unintended, and one in nine women have used emergency contraception (EC) at least once in their lifetime. At some point, you or your partner may have to use emergency contraception. We get it, accidents happen, so here’s what you need to know about it.

When to use EC

Emergency contraception is a safe and effective way to prevent pregnancy that can be used up to five days after unprotected sex. But when should you use it?

  • You didn’t use birth control when having sex
  • You forgot to take your birth control pills, patch, ring, etc.
  • Your partner’s condom broke or slipped off
  • Your partner didn’t pull out in time

How EC Works 

It can take up to six days after having sex for the sperm to meet the egg. Since pregnancy doesn’t happen right after sex, you can prevent pregnancy up to five days after unprotected sex by using emergency contraception.

Emergency contraception works by delaying ovulation. In other words, it keeps a woman’s ovary from releasing an egg for longer than usual. And if sperm can’t meet the egg, then pregnancy is NOT possible.

Types of EC

There are two types of emergency contraception: pills and the copper IUD.

  • Copper IUD – The most effective (99.9%) form of emergency contraception that can be inserted up to five days after unprotected sex. However, it must be inserted by a medical professional. A plus? It is a highly effective form of birth control that can last for up to 12 years.
  • Ulipristal Acetate Pills (also known as Ella) – The next most effective (85%) form of emergency contraception that can be taken up to five days after unprotected sex. The downsides? It is less effective for obese women (BMI over 35). It is not recommended for breastfeeding women. It also requires a prescription from a medical professional. However, unlike progestin-only pills, which are less effective on days 4 and 5. Ella is just as effective following unprotected sex on day 5 as it is on day 1.
  • Progestin-only Pills (also known as Plan B, Next Choice One Dose, etc.)  This form of emergency contraception, also known as the “morning after pill”, is 89% effective for up to three days after unprotected sex. It is less effective on days 4 and 5. It is also less effective for overweight women (BMI over 25), and it may not work for obese women with a (BMI over 35). However, this form of emergency contraception is available to purchase over the counter for anyone. You may also be able to get this form of emergency contraception at low- to no-cost at a Planned Parenthood health center near you.

What Should I Use

Since emergency contraception is more effective the sooner you take it, you may want to consider getting the “morning after pill” before you need it. That way you don’t have to wait to make a last-minute run to a drugstore or health center. You can get emergency contraception at Planned Parenthood, another health center, or at a drug store near you.

Only you know what works best for your body and lifestyle. Our medical professionals can help you make the best decision, make an appointment at a Planned Parenthood near you today.

Tags:

Explore more on

Planned Parenthood cares about your data privacy. We and our third-party vendors use cookies and other tools to collect, store, monitor, and analyze information about your interaction with our site to improve performance, analyze your use of our sites and assist in our marketing efforts. You may opt out of the use of these cookies and other tools at any time by visiting Cookie Settings. By clicking “Allow All Cookies” you consent to our collection and use of such data, and our Terms of Use. For more information, see our Privacy Notice.

Cookie Settings

Planned Parenthood cares about your data privacy. We and our third-party vendors, use cookies, pixels, and other tracking technologies to collect, store, monitor, and process certain information about you when you access and use our services, read our emails, or otherwise engage with us. The information collected might relate to you, your preferences, or your device. We use that information to make the site work, analyze performance and traffic on our website, to provide a more personalized web experience, and assist in our marketing efforts. We also share information with our social media, advertising, and analytics partners. You can change your default settings according to your preference. You cannot opt-out of required cookies when utilizing our site; this includes necessary cookies that help our site to function (such as remembering your cookie preference settings). For more information, please see our Privacy Notice.

Marketing

On

We use online advertising to promote our mission and help constituents find our services. Marketing pixels help us measure the success of our campaigns.

Performance

On

We use qualitative data, including session replay, to learn about your user experience and improve our products and services.

Analytics

On

We use web analytics to help us understand user engagement with our website, trends, and overall reach of our products.