You can get pregnant with an IUD, but this is very rare and usually happens when the device shifts out of place. Even though IUDs are more than 99% effective, pregnancy can still occur if the string is not positioned correctly or the device moves without symptoms.
A simple way to check for movement is by feeling for the IUD string, which normally measures about 1 to 2 centimeters. If the string feels longer, shorter, or cannot be felt at all, a gynecologist should evaluate the device, often using a transvaginal ultrasound to confirm its position.
Pregnancy symptoms with an IUD are generally the same as with any pregnancy, such as nausea, breast tenderness, bloating, tiredness, and mood changes. Women using a copper IUD may notice a missed period, while those with hormonal IUDs like Mirena or Jaydess might see a light pink discharge instead, since these devices often stop periods altogether.
Getting pregnant with an IUD carries a higher risk of complications, including miscarriage or an ectopic pregnancy, which is when the embryo implants in the fallopian tube instead of the uterus. These situations require prompt medical care. If pregnancy is suspected, it is important to see a gynecologist quickly so the IUD can be removed if necessary and the pregnancy can be monitored safely.