Intrauterine devices (IUDs) are among the most effective forms of reversible contraception available today. They are small, T-shaped devices that are inserted into the uterus to prevent pregnancy. There are two main types of IUDs: hormonal and copper. While they are highly effective, it is still possible, though rare, to become pregnant while using an IUD.

Effectiveness of IUDs
IUDs have a failure rate of less than 1%, making them one of the most reliable contraceptive methods. For example, the hormonal IUD releases progestin, which thickens cervical mucus and thins the uterine lining, making it difficult for sperm to reach an egg. The copper IUD, on the other hand, creates a hostile environment for sperm and may prevent fertilization.

Can You Get Pregnant with an IUD?
Although the chances are very low, it is still possible to become pregnant with an IUD in place. This can happen for several reasons:
Improper Placement: If the IUD is not correctly positioned in the uterus, its effectiveness can be compromised. This can occur if the IUD is expelled or if the insertion procedure was not done correctly.
Expulsion: In some cases, the IUD can partially or completely expel from the uterus without the individual noticing. This is more common in the first few months after insertion.
Failure of the Device: While rare, there can be a malfunction in the device itself, leading to unintended pregnancy. For example, a hormonal IUD might not release enough hormone to prevent ovulation.

Signs of Pregnancy with an IUD
If a person becomes pregnant with an IUD in place, they may experience symptoms such as:
Missed period
Nausea or vomiting
Breast tenderness
Fatigue
However, some women may not exhibit any noticeable symptoms, making it essential to take a pregnancy test if pregnancy is suspected.

Risks of Pregnancy with an IUD
Pregnancy with an IUD in place can carry additional risks, including:
Ectopic Pregnancy: This occurs when a fertilized egg implants outside the uterus, often in a fallopian tube. Ectopic pregnancies are medical emergencies and require immediate attention.
Increased Risk of Miscarriage: Pregnancies that occur with an IUD in situ have a higher chance of ending in miscarriage.

What to Do if You Think You're Pregnant
If you suspect that you might be pregnant while using an IUD, it is crucial to consult a healthcare provider as soon as possible. They can perform a pregnancy test and provide guidance on the next steps, including possible removal of the IUD if pregnancy is confirmed.

Conclusion
While the likelihood of becoming pregnant with an IUD in place is very low, it is not impossible. Understanding the risks and symptoms associated with pregnancy while using an IUD can help individuals make informed decisions about their reproductive health. For more detailed information, consider visiting reputable health sources such as Planned Parenthood or the CDC.