Sex Without a Condom When You Have an IUD

An intrauterine device (IUD) is a very effective form of birth control. Many people wonder what happens if they have sex without using a condom while the IUD is in place. Here’s what current medical sources say:

Key Points

• Very high effectiveness against pregnancy
  IUDs—both hormonal and copper types—are among the most reliable contraceptive methods. Once properly inserted and, depending on timing, “activated,” they prevent pregnancy with efficacy rates over 99%.

• No protection against STIs
  An IUD does not protect you from sexually transmitted infections (STIs). If STI protection is needed, using condoms in addition to the IUD is recommended.

• Timing matters

  • For copper IUDs, protection can begin immediately after insertion.

  • For hormonal IUDs, if inserted outside the first 7 days of a period (or depending on the type and when it’s inserted), some sources recommend using a backup method (like condoms) for the first 7 days.

• Discomfort & what is normal
  It’s not uncommon to have cramping, spotting, or light bleeding after insertion or during the first few months. Some people may feel the IUD strings slightly, but most partners don’t notice them during sex. If the strings are long or bothersome, they can often be trimmed.

• Risk of expulsion is low
  While it’s very unlikely that sexual activity alone will dislodge an IUD, there is a small risk of it moving (expulsion), particularly soon after insertion. Regular self-check of the strings helps, and if the strings cannot be felt or things feel different, consulting a healthcare provider is advised.

Summary

Having an IUD removes most worry about pregnancy, but it doesn’t remove all concerns. Sex without a condom is generally safe in terms of pregnancy prevention (with IUD correctly placed and active), but risks around STIs, potential expulsion (especially early on), and discomfort should be considered. Using a condom in addition to IUD is often best if STI protection is needed or as a precaution while waiting for some IUDs to become fully effective after insertion.