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

I had an IUD inserted about 5 months ago. Up until now my partner and I have still been using condoms just to be safe. How risky is it to not use condoms and to completely rely on my IUD to prevent pregnancy when my partner ejaculates inside of me?

The Paragard IUD is effective immediately after it’s inserted. The Mirena IUD is effective immediately if it’s inserted within seven days after the start of your period — if it’s inserted any time after that, you’ll need to use a backup method of birth control for seven days. So either way, it’s safe to say that at this point, you can absolutely depend on your IUD to prevent pregnancy.

The IUD is more than 99% effective at preventing pregnancy, making it one of the most effective forms of birth control around. Since the IUD is inserted by a health care provider and can stay in for years, you can’t forget to use it or use it incorrectly — factors that can make other birth control methods less effective.

One more thing: the IUD protects you from pregnancy, but it doesn’t protect you from STDs. Condoms are the only form of birth control that also protects you from STDs. So even if you have an IUD, it’s still a really good idea to keep using condoms.

Tags: IUD, condoms, unprotected sex

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.



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



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



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