Any time a woman begins using a new method of birth control, she should always take care to read instructions carefully and consult her physician when complications arise, or for additional information. Using an IUD (intrauterine device) is no exception. Even though the chances of getting pregnant are low with one in place, it still can happen.

An IUD is a T-shaped device made of flexible plastic that is inserted by a health care provider. Some brands contain the hormone progestin that helps to kill the sperm upon entrance, and they all are meant to divert the way that sperm swim through the canal to avoid contact with an egg. It is important to have the IUD checked regularly, even though it can stay in the uterus for years, to confirm placement and effectiveness.

According to medical experts, an IUD is one of the most effective methods of birth control on the market. However, statistics show that rates of pregnancy can vary depending on the type of IUD that is implanted. IUDs with hormone average about 1 in 1,000 pregnancies per year, while copper is approximately 6 in 1,000.

Because of its structure, an IUD is relatively safe in addition to being effective. But, like any type of birth control, there are risks involved. An IUD can, in rare cases, slip out of place, or be expelled completely from the uterus, sometimes without the woman even knowing. If it does lose its place, a woman may get pregnant with IUD. When this occurs, an ectopic pregnancy (one that occurs in the Fallopian tubes) or a miscarriage is highly possible.

If a woman thinks she may be pregnant while she has an IUD in place, she should call her physician to have it removed immediately to avoid any complications either to her own health or problems with the pregnancy itself.